Hi there, I am in the process of writing a macOS app using NSFileProviderExtension so that I can map my customer's data in Finder. I am in the process of building it out. But one thing I notice is that once the file is downloaded and I save it to the cache folder, I see it disappear from the folder. It looks like the system removed the downloaded file a few seconds later. How do I go about tracking this? I have added the log stream messages from the point where it is downloaded to the point where it is gone missing. Any pointers greatly appreciated. 2025-07-15 16:10:41.989915-0700 0x138326 Default 0x0 989 0 filecoordinationd: (Foundation) [com.apple.foundation.filecoordination:provider] Provider radwar.Drive.DriveFileProviderExtension finished providing for 44FB3A4A-CA50-4EE2-9DC8-1C96FE584DF5 2025-07-15 16:10:41.989974-0700 0x138326 Default 0x0 989 0 filecoordinationd: (Foundation) [com.apple.foundation.filecoordination:claims] Provider radwar.Drive.DriveFileProviderExtension finished, unblocking claimer for 44FB3A4A-CA50-4EE2-9DC8-1C96FE584DF5 2025-07-15 16:10:41.987613-0700 0x138bb6 Default 0x0 990 0 fileproviderd: (Foundation) [com.apple.foundation.filecoordination:provider] radwar.Drive.DriveFileProviderExtension finished providing 2025-07-15 16:10:42.034144-0700 0x138905 Default 0x71f4b8 624 7 runningboardd: (RunningBoard) [com.apple.runningboard:ttl] Invalidating assertion 624-44341-46806 (target:[xpcservice<radwar.Drive.DriveFileProviderExtension([osservice<com.apple.FileProvider(501)>:990])(501)>{vt hash: 247410607}[uuid:5AABEA5E-ACAD-428B-A6DD-F2EFF14CEE99]{persona:9EF54117-4998-4D72-83C4-F12587C95FBA}:44341]) from originator [xpcservice<radwar.Drive.DriveFileProviderExtension([osservice<com.apple.FileProvider(501)>:990])(501)>{vt hash: 247410607}[uuid:5AABEA5E-ACAD-428B-A6DD-F2EFF14CEE99]{persona:9EF54117-4998-4D72-83C4-F12587C95FBA}:44341] 2025-07-15 16:10:44.185866-0700 0x138906 Default 0x0 624 7 runningboardd: (RunningBoard) [com.apple.runningboard:ttl] [xpcservice<radwar.Drive.DriveFileProviderExtension([osservice<com.apple.FileProvider(501)>:990])(501)>{vt hash: 247410607}[uuid:B08DACEF-EDCC-4DE9-91AA-DC26EDB2FA89]{persona:9EF54117-4998-4D72-83C4-F12587C95FBA}:44328] termination reported by launchd (0, 0, 0) 2025-07-15 16:10:44.186166-0700 0x138906 Default 0x0 624 0 runningboardd: (RunningBoard) [com.apple.runningboard:process] Removing process: [xpcservice<radwar.Drive.DriveFileProviderExtension([osservice<com.apple.FileProvider(501)>:990])(501)>{vt hash: 247410607}[uuid:B08DACEF-EDCC-4DE9-91AA-DC26EDB2FA89]{persona:9EF54117-4998-4D72-83C4-F12587C95FBA}:44328] 2025-07-15 16:10:44.186424-0700 0x138906 Default 0x0 624 0 runningboardd: (RunningBoard) [com.apple.runningboard:process] Removing assertions for terminated process: [xpcservice<radwar.Drive.DriveFileProviderExtension([osservice<com.apple.FileProvider(501)>:990])(501)>{vt hash: 247410607}[uuid:B08DACEF-EDCC-4DE9-91AA-DC26EDB2FA89]{persona:9EF54117-4998-4D72-83C4-F12587C95FBA}:44328] 2025-07-15 16:10:44.189939-0700 0x138c30 Default 0x71f4e4 976 0 gamepolicyd: (RunningBoardServices) [com.apple.runningboard:monitor] Received state update for 44328 (xpcservice<radwar.Drive.DriveFileProviderExtension([osservice<com.apple.FileProvider(501)>:990])(501)>{vt hash: 247410607}[uuid:B08DACEF-EDCC-4DE9-91AA-DC26EDB2FA89]{persona:9EF54117-4998-4D72-83C4-F12587C95FBA}, none-NotVisible 2025-07-15 16:10:44.190503-0700 0x138c8f Default 0x0 624 0 runningboardd: (RunningBoard) [com.apple.runningboard:process] XPC connection invalidated: [xpcservice<radwar.Drive.DriveFileProviderExtension([osservice<com.apple.FileProvider(501)>:990])(501)>{vt hash: 247410607}[uuid:B08DACEF-EDCC-4DE9-91AA-DC26EDB2FA89]{persona:9EF54117-4998-4D72-83C4-F12587C95FBA}:44328] 2025-07-15 16:10:46.294619-0700 0x13904a Default 0x0 44341 0 DriveFileProviderExtension: 🔥FileProviderExtension: 🔥FileProviderExtension: ❌ CRITICAL: File disappeared after 5 seconds! /Users/radwar/Library/Containers/radwar.Drive.DriveFileProviderExtension/Data/Library/Caches/FileCache/README.md (item: 19105790787)```

I am developing a FileProvider on Mac OS. I want to support Coauthoring Via Microsoft. As per Microsoft's documentation, the supportedServices function should be called via the OS when an Office file is opened. I have overridden this function in my fileprovider extension, but fail to see this function getting called. Has anyone else had any experience with coauthoring integration for File Provider and could give some advice? I am mostly working from the given documentation from Microsoft https://learn.microsoft.com/en-us/microsoft-365/cloud-storage-partner-program/plus/sync-client/metadata