(iOS 14 specific?) Unable to export video asset from shared album when using AVAssetExportSession

Number:rdar://FB8815719 Date Originated:10/20/20
Status:Open Resolved:No
Product:AVFoundation Product Version:
Classification:Incorrect/Unexpected Behavior Reproducible:Yes
I was seeing an error when trying to export a video from a shared album. The error message was "The operation could not be completed. An unknown error occurred (-17507)", and the NSError returned did not have any suggestions on how to fix the issue. The preset was AVAssetExportPresetPassthrough and the file output type was MOV.

I do not know why this asset did not work, but I was able to use this code with the same asset in iOS 13 without issues, so I suspect this is iOS 14 specific.

I generated the sysdiagnose, and the error occurred around October 20th, 2020, 4:15PM EST.


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