When creating an icon using icon composer, I cant upload a build to testflight/App Store connect.
Running on device from Xcode works fine, but as soon as I archive and upload to App Store Connect, I get an error saying the icon contains an alpha channel
Thanks for those details, @JackB321. I don't have a workaround to offer you for that configuration right now, but we are investigating the root cause and understand the impact of this issue.
However, your mention of the released Xcode version here is surprising — are you using that as a vehicle to submit an app built with Xcode 26? And does the build you are submitting from Xcode 16 have icons from Icon Composer?
— Ed Ford, DTS Engineer
Same problem here. Using Xcode 26 beta 6 and the latest version of icon composer (checked today). If I get the icon composer exported icons and use Preview to remove the alpha channel, I can submit with no problems, but the whole point of icon composer is to have those transparency/Liquid Glass effects…
Getting the same issue 'ITMS-90717: Invalid large app icon' when building my app on Xcode Cloud using the latest beta versions.
The versions listed in the workflow are as follows: Xcode Version: Xcode 26 beta 6 (17A5305f) macOS Version: macOS Tahoe 26 beta 7 (25A5346a)
Hoping for some updates to this issue soon!
Through trial and error I have found what causes this issue (at least one cause.- maybe there are more).
The problem for me was caused by the combination of two things:
So for me, the fix was to turn off the blur setting on the group that had an SVG near the edge.
I followed @nachojackson's fix, and that allowed me to proceed with the submission. I miss some of the subtlety the blur gave, but for now, this will do. Going to try an Xcode Cloud archive later today.
Still occurring on ios 26 beta 8 and Xcode 26 beta 7.
Still occurring 2 days before when RC app submissions are likely to occur. Maybe this gets fixed via a backend rollout but im not confident.
My FB has ”no similar reports”
I'm having the same problem with one of my apps using the Xcode 26 FC. Anyone found a fix yet?
Same here, issue persists with the Release Candidate.
@nachojackson solved the issue for us. We had a group new the edge of the icon canvas with the "blur" effect enabled. Disabled the blur which seems to stop the auto-compiled SVG from having an alpha channel.
For those continuing to experience this with Xcode 26 RC, we're investigating. A previous issue that produced this message is resolved with Xcode 26 RC (FB19782649), however, we've since identified another issue (r. 159919021) that produces the same message.
There are some mentions in this thread of modifying the blur as a workaround, and I'd like to acknowledge @nachojackson and @joeallenpro from the community for providing and confirming those workarounds worked for them.
— Ed Ford, DTS Engineer
I am getting this issue also and I am on RC Xcode and RC macOS Tahoe. I took the .icon file out the 'App Icon' section of the Target settings and it allowed be to archive properly. Wondering if the Connect server is running into a bug with the .icon files. Hoping it gets fixed soon and I can hopfully push a 'day-one' update alongside the release of iOS26
I've been getting this issue too, and after weeks of checking the forums and being told it would be resolved by release, it's very frustrating to spend hours trying different things now the RC is out and it's still failing.
As mentioned by others, removing the blur from an SVG near the edge fixed it for me.
I have just tried with Xcode 26 RC and still get the same error "ITMS-90717: Invalid large app icon". I have tested with only SVG files, with only PNG, where one was w/o alpha, and with combination SVG and PNG. Nothing worked. I sent feedback with attached AppIcon.icon file.
Turn off Blur for the group fixed this issue and was able to submit app for review. It is not the best but at least is a workaround.