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“Popping Sound”

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Reply to NSFileSandboxingRequestRelatedItemExtension: Failed to issue extension
The files, both user-selected and sidecar, reside in a folder inside my user’s document folder, and I try to read the sidecar when the user opens the audio file. OK. SO, one thing I would test here is what happens if you test the same code with files that are in a directory outside of the normal user hierarchy. You can try with a directory inside your home directory, but I actually suggest using a folder ENTIRELY outside the user hierarchy— for example, on a disk image or an external volume. The issue here is that macOS has multiple independent systems of data protection, most of which are focused on user data (like the contents of ~/Documents/). Moving outside of that hierarchy means you’re looking at the basic case, which is easier to evaluate. Looking at the other cases here: I can access the sidecar file from the terminal and load its content. FYI, Terminal.app is a tricky tool to test an experiment with. The issues here are: It's not sandboxed, which exempts it from the more aggressive file prot
Topic: App & System Services SubTopic: Core OS Tags:
Jan ’26
Reply to AppleAVBAudio assertion information
Your profile isn’t constructed correctly. The Enable-Private-Data is meant to be nested within a System dictionary: System Enable-Private-Data IMPORTANT Don’t enable all private data on a system you care about. While Apple strives not to log anything too precious, it’s hard to guarantee that. I usually do this sort of testing in a ‘victim’ machine. Typically that’s a VM, although that might be challenging given that you’re developing an audio accessory. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Media Technologies SubTopic: Audio Tags:
Jan ’26
Reply to CoreBluetooth connection never starts
Thanks @DTS Engineer - I appreciate your help. It's interesting that your guide says DevForums is not an official support channel, and yet when I tried to engage with Developer Code-Level Support they pushed me to DevForums implying that it is an official support channel. Do you have any way of feeding back to Code-Level Support that they shouldn't be pushing people here for official support? It sounds like all hope is lost on this issue. I guess the only workaround I can offer to affected customers is to use an Android device instead?
Topic: App & System Services SubTopic: Core OS Tags:
Jan ’26
Reply to MultipeerNetworking stability
My general advice is that you avoid Multipeer Connectivity. I explain why, and a lot more besides, in Moving from Multipeer Connectivity to Network Framework. [quote='813963021, PellePepper, /thread/813963, /profile/PellePepper'] In real environments of athletics venues the solution is only stable in a region of about 2 meters [/quote] It sounds like you’re using it to access peer-to-peer Wi-Fi. I have three important notes on that front: Multipeer Connectivity is not the only way to access peer-to-peer Wi-Fi. I talk more about that in TN3151 Choosing the right networking API. If you just switch to Network framework, it might not actually help, because they use the same underlying Apple peer-to-peer Wi-Fi mechanism. OTOH, it might actually help because Network framework gives you great visibility into what’s happening on the ‘wire’ versus Multipeer Connectivity. We also have Wi-Fi Aware, which is a different peer-to-peer Wi-Fi mechanism. Note that Wi-Fi Aware is just there to set up the pairing, and
Topic: App & System Services SubTopic: Networking Tags:
Jan ’26
build failure due to certificates not matching
i am creating a app on appmysite while it runs its build test an error message pops up saying build failed. it seems your app build has encountered an issue. the certificate used to generate the uploaded provisioning profile does not match the uploaded certificate. I understand why its saying it because the uploaded certificate had to be uploaded as .p12. The certificate in the provisioning profile is made of .cert. I am using a apple mac book and a xenovo windows computer. Im simply trying to figure out how to put the .p12 certificate into the provisioning profile? whenever i go to my developer account and try to create a new provisioning account with the new .p12 certificate. The only options that pop up for me to select are only the certificates that are in .cert form. I've tried exporting through key access and they show up in my files but no way to transfer to my developer account to combine it with a provisioning account. Any help is greatly appreciated, this is literally the only thing keeping
Topic: Code Signing SubTopic: Certificates, Identifiers & Profiles Tags:
1
0
432
Jan ’26
Reply to NSFileSandboxingRequestRelatedItemExtension: Failed to issue extension
Hello Kevin, thx for coming here! Let me clarify: I can only access the user selected file. The sidecar file can not be accessed, due to not getting a FilePresenter (Sandbox tells failed to issue an extension for file) The files both user selected and sidecar reside in a folder inside my users document folder and I try to read the sidecar when the user opens the audio file. I can access the sidecar file from terminal and load its content. I can also load its content when opening it with a second NSOpenPanel(). So access rights are okay. Using one of my Apps from the AppStore which implements the same file access works as well. So currently I am lost why my fresh code on the fresh installed machine is not working. TIA, Volker
Topic: App & System Services SubTopic: Core OS Tags:
Jan ’26
Reply to NSFileSandboxingRequestRelatedItemExtension: Failed to issue extension
I have a SwiftUI app that opens a user-selected audio file (wave). For each audio file, an additional file exists containing events that were extracted from the audio file. This additional file has the same filename and uses the extension bcCalls. I load the audio file using FileImporter view modifier and then access the audio file with a security-scoped bookmark. That works well. To clarify here, do you mean that you’re able to access both the directly selected file and its related sidecar? Or just that you're able to access the direct file? After loading the audio, I create a CallsSidecar NSFilePresenter with the URL of the audio file. I make the presenter known to the NSFileCoordinator and then add it to the FileCoordinator. This fails with NSFileSandboxingRequestRelatedItemExtension: Failed to issue extension for; Error Domain=NSPOSIXErrorDomain Code=3 No such process Is the failure here about opening an existing file or about writing a new fi
Topic: App & System Services SubTopic: Core OS Tags:
Jan ’26
Reply to Icon label's missing
Hello! This doesn't sound right, and is probably a bug. But to be sure, we need some more information to investigate Can you please file a bug report and include a video recording of you experiencing the issue? This site will walk you through the steps, https://developer.apple.com/bug-reporting/ You can tell me what the Feedback ID is for this issue and I'll make sure it gets to the right team to investigate.
Topic: Accessibility & Inclusion SubTopic: General
Jan ’26
Request for Clarification on Repeated App Review Rejections – Kids Category
Hello App Review Team, I am writing to seek clarification regarding repeated review feedback received via App Store Connect (Resolution Center) for my app: App Name: Animal Sounds & Insects 90+ App ID: 6741077718 Team ID: 24MTF8NJ6Q Over the past two weeks, this app update has remained in review with multiple rejections referencing similar concerns, despite detailed responses and clarifications already provided in the Resolution Center. Unfortunately, I have not received follow-up responses or specific guidance there, which has prevented me from releasing even a minor update. To ensure clarity and avoid further delays, I am summarizing the key points below. Parental Gate (Guideline 1.3 – Kids Category) The review feedback indicates that the app may include links, commerce, or ad interactions without parental permission. I would like to clarify that the app implements a mandatory, non-dismissible parental gate, which is required before: Opening any external links Engaging in any form of commerce,
Topic: App Store Distribution & Marketing SubTopic: App Review Tags:
1
0
182
Jan ’26
MFi enrollment process
I followed the instructions on the page https://mfi.apple.com/en/help/login-help/How-to-Register-Your-Existing-Apple-ID.html to apply for the MFi Program. According to step 7 of the guide: You have now created and registered your Apple Account. You will be automatically directed to the MFi Portal to begin the enrollment process, I should have been taken to the enrollment process after logging in. However, instead of accessing the enrollment page, a pop-up message appears stating: The Apple Account you signed in with does not have permission to view this page. If you believe your company is currently enrolled in the MFi Program, please contact your company’s Account Administrator to request access to the MFi Portal. If your company is not currently enrolled in the MFi Program, please click here to learn about the program and start the enrollment process. This has created an endless loop—I cannot proceed to the enrollment process as instructed, and the pop-up only redirects me to information t
Topic: App & System Services SubTopic: Hardware
1
0
197
Jan ’26
Reply to Linker nondeterminism (ld_new) involving branch islands
[quote='873554022, jamie_sq, /thread/805609?answerId=873554022#873554022, /profile/jamie_sq'] if any investigation has revealed whether there's anything that can be done to work around the problem [/quote] Nothing obvious popped out )-: I can say that we do fully understand the issue now and that makes the likelihood of a fix promising. However, I can’t offer a concrete timeline, other than to confirm that the fix didn’t catch the Xcode 26.2 bus. As always, I recommend that you re-test with future beta releases of Xcode as we seed them. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Developer Tools & Services SubTopic: General Tags:
Jan ’26
Reply to Notarization taking 3.5–4.5 hours for large macOS apps — is this expected?
Notarising very large products can take a while. I usually advise folks to approach this in two steps. The first step is to separate upload time from notarisation time. This is relatively straightforward: Use notarytool, without the --wait option, to upload your product. Make a note of when that finishes. Wait for the notarisation to complete. Compare the upload time to the overall notarisation time. I regularly see situations where the upload time dominates the notarisation time. If that’s the case then there’s a different path to follow. However, in this case it sounds like you’ve already done this test and determined that the bulk of the delay is after the upload. Given that, there’s a couple of things to do. The first is to file a bug against the notary service. I’ve seen cases where there’s something specific about the product that’s causing the notary service to enter a pathological state. In your bug report, make sure to include: A request UUID showing the problem. The evidence you have confir
Topic: Code Signing SubTopic: Notarization Tags:
Jan ’26
[DS-U4B1][EVT1][DPResolutionTest] DP port extended screen: Hot plug downstream port, no audio output. (Random)
Problem Description DP extended display: When hot-plugging the downstream DP port, there is no audio output. (Occurs randomly) 2. Setup Condition The product is connected to the following platform: Platform: Apple MacBook Pro (16-inch, M4 Max, 2024) The DP port is connected to the following monitor: 3. Reproduction Procedure Step 1: Connect the DP port to the extended display ASUS VP28U (4K 60Hz) Step 2: Connect the platform Apple MacBook Pro (16-inch, M4 Max, 2024) Step 3: Hot-plug the downstream DP port → no audio output (random occurrence) Bug Description DP extended display: When hot-plugging the downstream DP port, there is no audio output. (Random) Affected Platform & Monitor Combination Apple MacBook Pro (16-inch, M4 Max, 2024) & Samsung S32BG850NC (4K 240Hz) Vendor Anaysis: After analysis, we found that the issue also fails when the host is directly connected to the monitor (tested with two different USB-C to DP cables, both showing the same failure). The RTS5490 onl
Topic: Community SubTopic: Apple Developers
1
0
225
Jan ’26
Unable to select 4K resolution on Sharp 8TC60DWTX (8K) display.
Problem description: Connected to a Sharp 8TC60DWTX (8K) display, but unable to select 4K resolution Setup Condition Apple MacBook Pro 16-inch M4 Max Sharp 8TC60DWTX (8K) 3.Duplicate Procedure After connecting to 8K MNT and select 4K solution, it still display as 8K. Vendor analysis: 8K60 shows no image; switching to 30 Hz works normally → After analysis, we found that the 8K60 timing output from the MacBook is incorrect. The horizontal blanking (H-CBlanking) is too small to accommodate the audio data, so the RTD2191E does not output video to the monitor. → This issue does not occur on Windows platforms, confirming that this is a host-side issue.
Topic: Community SubTopic: Apple Developers
3
0
285
Jan ’26
Reply to NSFileSandboxingRequestRelatedItemExtension: Failed to issue extension
The files, both user-selected and sidecar, reside in a folder inside my user’s document folder, and I try to read the sidecar when the user opens the audio file. OK. SO, one thing I would test here is what happens if you test the same code with files that are in a directory outside of the normal user hierarchy. You can try with a directory inside your home directory, but I actually suggest using a folder ENTIRELY outside the user hierarchy— for example, on a disk image or an external volume. The issue here is that macOS has multiple independent systems of data protection, most of which are focused on user data (like the contents of ~/Documents/). Moving outside of that hierarchy means you’re looking at the basic case, which is easier to evaluate. Looking at the other cases here: I can access the sidecar file from the terminal and load its content. FYI, Terminal.app is a tricky tool to test an experiment with. The issues here are: It's not sandboxed, which exempts it from the more aggressive file prot
Topic: App & System Services SubTopic: Core OS Tags:
Replies
Boosts
Views
Activity
Jan ’26
Reply to AppleAVBAudio assertion information
Your profile isn’t constructed correctly. The Enable-Private-Data is meant to be nested within a System dictionary: System Enable-Private-Data IMPORTANT Don’t enable all private data on a system you care about. While Apple strives not to log anything too precious, it’s hard to guarantee that. I usually do this sort of testing in a ‘victim’ machine. Typically that’s a VM, although that might be challenging given that you’re developing an audio accessory. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Media Technologies SubTopic: Audio Tags:
Replies
Boosts
Views
Activity
Jan ’26
Reply to CoreBluetooth connection never starts
Thanks @DTS Engineer - I appreciate your help. It's interesting that your guide says DevForums is not an official support channel, and yet when I tried to engage with Developer Code-Level Support they pushed me to DevForums implying that it is an official support channel. Do you have any way of feeding back to Code-Level Support that they shouldn't be pushing people here for official support? It sounds like all hope is lost on this issue. I guess the only workaround I can offer to affected customers is to use an Android device instead?
Topic: App & System Services SubTopic: Core OS Tags:
Replies
Boosts
Views
Activity
Jan ’26
Reply to MultipeerNetworking stability
My general advice is that you avoid Multipeer Connectivity. I explain why, and a lot more besides, in Moving from Multipeer Connectivity to Network Framework. [quote='813963021, PellePepper, /thread/813963, /profile/PellePepper'] In real environments of athletics venues the solution is only stable in a region of about 2 meters [/quote] It sounds like you’re using it to access peer-to-peer Wi-Fi. I have three important notes on that front: Multipeer Connectivity is not the only way to access peer-to-peer Wi-Fi. I talk more about that in TN3151 Choosing the right networking API. If you just switch to Network framework, it might not actually help, because they use the same underlying Apple peer-to-peer Wi-Fi mechanism. OTOH, it might actually help because Network framework gives you great visibility into what’s happening on the ‘wire’ versus Multipeer Connectivity. We also have Wi-Fi Aware, which is a different peer-to-peer Wi-Fi mechanism. Note that Wi-Fi Aware is just there to set up the pairing, and
Topic: App & System Services SubTopic: Networking Tags:
Replies
Boosts
Views
Activity
Jan ’26
build failure due to certificates not matching
i am creating a app on appmysite while it runs its build test an error message pops up saying build failed. it seems your app build has encountered an issue. the certificate used to generate the uploaded provisioning profile does not match the uploaded certificate. I understand why its saying it because the uploaded certificate had to be uploaded as .p12. The certificate in the provisioning profile is made of .cert. I am using a apple mac book and a xenovo windows computer. Im simply trying to figure out how to put the .p12 certificate into the provisioning profile? whenever i go to my developer account and try to create a new provisioning account with the new .p12 certificate. The only options that pop up for me to select are only the certificates that are in .cert form. I've tried exporting through key access and they show up in my files but no way to transfer to my developer account to combine it with a provisioning account. Any help is greatly appreciated, this is literally the only thing keeping
Topic: Code Signing SubTopic: Certificates, Identifiers & Profiles Tags:
Replies
1
Boosts
0
Views
432
Activity
Jan ’26
Reply to NSFileSandboxingRequestRelatedItemExtension: Failed to issue extension
Hello Kevin, thx for coming here! Let me clarify: I can only access the user selected file. The sidecar file can not be accessed, due to not getting a FilePresenter (Sandbox tells failed to issue an extension for file) The files both user selected and sidecar reside in a folder inside my users document folder and I try to read the sidecar when the user opens the audio file. I can access the sidecar file from terminal and load its content. I can also load its content when opening it with a second NSOpenPanel(). So access rights are okay. Using one of my Apps from the AppStore which implements the same file access works as well. So currently I am lost why my fresh code on the fresh installed machine is not working. TIA, Volker
Topic: App & System Services SubTopic: Core OS Tags:
Replies
Boosts
Views
Activity
Jan ’26
Reply to NSFileSandboxingRequestRelatedItemExtension: Failed to issue extension
I have a SwiftUI app that opens a user-selected audio file (wave). For each audio file, an additional file exists containing events that were extracted from the audio file. This additional file has the same filename and uses the extension bcCalls. I load the audio file using FileImporter view modifier and then access the audio file with a security-scoped bookmark. That works well. To clarify here, do you mean that you’re able to access both the directly selected file and its related sidecar? Or just that you're able to access the direct file? After loading the audio, I create a CallsSidecar NSFilePresenter with the URL of the audio file. I make the presenter known to the NSFileCoordinator and then add it to the FileCoordinator. This fails with NSFileSandboxingRequestRelatedItemExtension: Failed to issue extension for; Error Domain=NSPOSIXErrorDomain Code=3 No such process Is the failure here about opening an existing file or about writing a new fi
Topic: App & System Services SubTopic: Core OS Tags:
Replies
Boosts
Views
Activity
Jan ’26
Reply to Icon label's missing
Hello! This doesn't sound right, and is probably a bug. But to be sure, we need some more information to investigate Can you please file a bug report and include a video recording of you experiencing the issue? This site will walk you through the steps, https://developer.apple.com/bug-reporting/ You can tell me what the Feedback ID is for this issue and I'll make sure it gets to the right team to investigate.
Topic: Accessibility & Inclusion SubTopic: General
Replies
Boosts
Views
Activity
Jan ’26
Request for Clarification on Repeated App Review Rejections – Kids Category
Hello App Review Team, I am writing to seek clarification regarding repeated review feedback received via App Store Connect (Resolution Center) for my app: App Name: Animal Sounds & Insects 90+ App ID: 6741077718 Team ID: 24MTF8NJ6Q Over the past two weeks, this app update has remained in review with multiple rejections referencing similar concerns, despite detailed responses and clarifications already provided in the Resolution Center. Unfortunately, I have not received follow-up responses or specific guidance there, which has prevented me from releasing even a minor update. To ensure clarity and avoid further delays, I am summarizing the key points below. Parental Gate (Guideline 1.3 – Kids Category) The review feedback indicates that the app may include links, commerce, or ad interactions without parental permission. I would like to clarify that the app implements a mandatory, non-dismissible parental gate, which is required before: Opening any external links Engaging in any form of commerce,
Topic: App Store Distribution & Marketing SubTopic: App Review Tags:
Replies
1
Boosts
0
Views
182
Activity
Jan ’26
Reply to how to use this api:AVAudioConverter?
https://developer.apple.com/documentation/audiotoolbox/encoding-and-decoding-audio
Topic: Media Technologies SubTopic: Audio Tags:
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Activity
Jan ’26
MFi enrollment process
I followed the instructions on the page https://mfi.apple.com/en/help/login-help/How-to-Register-Your-Existing-Apple-ID.html to apply for the MFi Program. According to step 7 of the guide: You have now created and registered your Apple Account. You will be automatically directed to the MFi Portal to begin the enrollment process, I should have been taken to the enrollment process after logging in. However, instead of accessing the enrollment page, a pop-up message appears stating: The Apple Account you signed in with does not have permission to view this page. If you believe your company is currently enrolled in the MFi Program, please contact your company’s Account Administrator to request access to the MFi Portal. If your company is not currently enrolled in the MFi Program, please click here to learn about the program and start the enrollment process. This has created an endless loop—I cannot proceed to the enrollment process as instructed, and the pop-up only redirects me to information t
Topic: App & System Services SubTopic: Hardware
Replies
1
Boosts
0
Views
197
Activity
Jan ’26
Reply to Linker nondeterminism (ld_new) involving branch islands
[quote='873554022, jamie_sq, /thread/805609?answerId=873554022#873554022, /profile/jamie_sq'] if any investigation has revealed whether there's anything that can be done to work around the problem [/quote] Nothing obvious popped out )-: I can say that we do fully understand the issue now and that makes the likelihood of a fix promising. However, I can’t offer a concrete timeline, other than to confirm that the fix didn’t catch the Xcode 26.2 bus. As always, I recommend that you re-test with future beta releases of Xcode as we seed them. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Developer Tools & Services SubTopic: General Tags:
Replies
Boosts
Views
Activity
Jan ’26
Reply to Notarization taking 3.5–4.5 hours for large macOS apps — is this expected?
Notarising very large products can take a while. I usually advise folks to approach this in two steps. The first step is to separate upload time from notarisation time. This is relatively straightforward: Use notarytool, without the --wait option, to upload your product. Make a note of when that finishes. Wait for the notarisation to complete. Compare the upload time to the overall notarisation time. I regularly see situations where the upload time dominates the notarisation time. If that’s the case then there’s a different path to follow. However, in this case it sounds like you’ve already done this test and determined that the bulk of the delay is after the upload. Given that, there’s a couple of things to do. The first is to file a bug against the notary service. I’ve seen cases where there’s something specific about the product that’s causing the notary service to enter a pathological state. In your bug report, make sure to include: A request UUID showing the problem. The evidence you have confir
Topic: Code Signing SubTopic: Notarization Tags:
Replies
Boosts
Views
Activity
Jan ’26
[DS-U4B1][EVT1][DPResolutionTest] DP port extended screen: Hot plug downstream port, no audio output. (Random)
Problem Description DP extended display: When hot-plugging the downstream DP port, there is no audio output. (Occurs randomly) 2. Setup Condition The product is connected to the following platform: Platform: Apple MacBook Pro (16-inch, M4 Max, 2024) The DP port is connected to the following monitor: 3. Reproduction Procedure Step 1: Connect the DP port to the extended display ASUS VP28U (4K 60Hz) Step 2: Connect the platform Apple MacBook Pro (16-inch, M4 Max, 2024) Step 3: Hot-plug the downstream DP port → no audio output (random occurrence) Bug Description DP extended display: When hot-plugging the downstream DP port, there is no audio output. (Random) Affected Platform & Monitor Combination Apple MacBook Pro (16-inch, M4 Max, 2024) & Samsung S32BG850NC (4K 240Hz) Vendor Anaysis: After analysis, we found that the issue also fails when the host is directly connected to the monitor (tested with two different USB-C to DP cables, both showing the same failure). The RTS5490 onl
Topic: Community SubTopic: Apple Developers
Replies
1
Boosts
0
Views
225
Activity
Jan ’26
Unable to select 4K resolution on Sharp 8TC60DWTX (8K) display.
Problem description: Connected to a Sharp 8TC60DWTX (8K) display, but unable to select 4K resolution Setup Condition Apple MacBook Pro 16-inch M4 Max Sharp 8TC60DWTX (8K) 3.Duplicate Procedure After connecting to 8K MNT and select 4K solution, it still display as 8K. Vendor analysis: 8K60 shows no image; switching to 30 Hz works normally → After analysis, we found that the 8K60 timing output from the MacBook is incorrect. The horizontal blanking (H-CBlanking) is too small to accommodate the audio data, so the RTD2191E does not output video to the monitor. → This issue does not occur on Windows platforms, confirming that this is a host-side issue.
Topic: Community SubTopic: Apple Developers
Replies
3
Boosts
0
Views
285
Activity
Jan ’26