To further clarify: an error is not all that is thrown (that I could just catch and re-try); the error cause the app to hang "no matter what I do to mitigate the hang". Our app has become unusable. Error + hang happens either randomly (6 out of 10 times) when using AVVideoCompositionCoreAnimationTool to add an overly -AND- error always happens when trying to render/export and then app is sent to background & back to foreground. iOS dev hang-detection shows count up to 10s and then is shortly after executed by iOS. We have tried everything and nothing will mitigate. Started happening several major versions back of iOS; then seems to have been fixed; and then back again. Seems like others have given up on issue and shut down their apps because has destroyed their business with this not being fixed by Apple Media Engineers.

I have filled feedback report FB11677700 with full description and sample project. I have heard nothing back from the apple engineer's after multiple requests for updates. Why is it that apple always gives some vague answers (LIKE: "This symptom can be indicative of a number of different root causes") and asks developers to file reports and sample projects when they know that multiple people have already done this already and have described the problem in detail. APPLE MEDIA ENGINEERS: why don't you do your jobs and fix this long standing problem of something you keep breaking. Really guys, just stop it and do your jobs. The dev community is not crazy. We are suffering because you guys won't "DO YOUR JOBS!". I'm sure some moderator will delete this truth of a post but you should be ashamed of yourselves! This is our way of making an income and you are hurting us. HOW LONG HAS THIS THREAD ALONE EXISTED in addition to all the others out there of devs complaining about this issue??? Speaking of which, I'm going to send an email to Mr. C so that he knows about this issue. Always happens when we report problems that good luck if an apple engineer actually gets back to you. Too busy adding new features to the next version of iOS I am sure.

I've intermittently had the same issue of the years depending on which iOS version apple put out. The issue "seemed" to go away in iOS 15.7 but in iOS 16+ it is intermittently back. I filled a feedback request with Apple with sample project, steps to reproduce, and video leading up to hang then crash. Fingers crossed that they finally fix this issue. UPDATE: Also happens in 16.2 Beta (Oct 25, 2022) on all of my devices including iPhone 14 Pro Max.

Did anyone ever find a solution to this. I have tried everything. Export works 99% of the time but every once in a blue moon export & app freezes and then I have to terminate app. Please assist @eskimo. Can you look into those couple of feedbacks that were submitted by others and let me know on this thread what the responses were from app devs? Thank you!

Apple please implement in Mac Catalyst apps like with iOS… There are proper use cases where the user has already selected a printer and we don’t want to keep asking for which printer for subsequent prints. That being said, we need to be able to print silently to UIPrinter with a printer that was already captured/selected by the user. Please implement as a lot of us developers need this feature like in iOS!

Is happening to me as well on iOS 14. Everything is fine with iOS 12/13.