Any luck with this? I think in the security notes it says that there was a bug that allowed a video to hack the system. Maybe that work started this situation. Once it goes down in our app videos stop playing, exporting stops, everything else is still working but the app is not usable. The thing that caught my eye was this section AVEVideoEncoder Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An application may be able to cause unexpected system termination or write kernel memory Description: A race condition was addressed with improved state handling. CVE-2021-30714: @08Tc3wBB of ZecOps, and George Nosenko

I sent in a bug report this morning Bug Report FB9121026...It also has a minimal example that will exhibit this error and AVFoundation crash. Not a crash of the app just AVFoundation. I hope that helps get this issue resolved. Code we have used as far back as i remember will not work