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TOPIC: MXF Crash

MXF Crash 25 Apr 2020 15:18 #106559

  • James Branch
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Hi,

FCPX just started crashing on export of an AVC-Intra 100 file with four mono tracks. Exporting as a multichannel file with audio determined by roles. I've been doing this without incident for the last month. Now it's started crashing. I've deleted render files and trashed preferences. Still crashing. I created a preset in Compressor and that works. Any ideas why this would suddenly start to crash after working fine? No new plugins installed. Here's the crash report. I've sent it to Apple.

0 com.apple.Flexo 0x000000010cb041e1 -[FFMXFMovieWriter setSettings:renderFormat:videoFormat:] + 1137
1 com.apple.Flexo 0x000000010cb03996 -[FFMXFMovieWriter initWithPathAndMedia:media:numberFrames:channelCountPerTrack:renderFormat:videoFormatKey:error:] + 902
2 com.apple.Flexo 0x000000010caee82b -[FFSequenceSettingsExporter _runExport] + 2779
3 com.apple.CoreFoundation 0x00007fff34cc287c __invoking___ + 140
4 com.apple.CoreFoundation 0x00007fff34cc2747 -[NSInvocation invoke] + 311
5 com.apple.Foundation 0x00007fff37000d5e -[NSInvocationOperation main] + 34
6 com.apple.Foundation 0x00007fff36f27cbd -[__NSOperationInternal _start:] + 685
7 com.apple.Foundation 0x00007fff36f51c77 __NSOQSchedule_f + 227
8 libdispatch.dylib 0x00007fff60bc95f8 _dispatch_call_block_and_release + 12
9 libdispatch.dylib 0x00007fff60bca63d _dispatch_client_callout + 8
10 libdispatch.dylib 0x00007fff60bccde6 _dispatch_continuation_pop + 414
11 libdispatch.dylib 0x00007fff60bcc4a3 _dispatch_async_redirect_invoke + 703
12 libdispatch.dylib 0x00007fff60bd83bc _dispatch_root_queue_drain + 324
13 libdispatch.dylib 0x00007fff60bd8b46 _dispatch_worker_thread2 + 90
14 libsystem_pthread.dylib 0x00007fff60e0a6b3 _pthread_wqthread + 583
15 libsystem_pthread.dylib 0x00007fff60e0a3fd start_wqthread + 13


Cheers,

James

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MXF Crash 25 Apr 2020 22:25 #106562

  • joema
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I don't know why it's crashing. The code for this might be part of Apple Pro Video Formats, so you could make sure you have the latest version. Prior to Mojave this was updated on the App Store. Mojave and later it is updated in System Preferences>Software Update.

The call stack shows it is reading the timeline audio config then trying to export the file then crashing. For MXF reading, the code is in /Library/Video/Professional Video Workflow Plug-Ins/AppleMXFImport.bundle. For MXF writing I'm not sure what file contains the code.

For cases like this the best approach is often to trim down and isolate the replication scenario then contact Pro Apps support. The smaller and more reproducible the scenario the faster it will get fixed. The process of narrowing down the replication will often lead to a workaround until it is fixed.

If it doesn't happen on FCPX 10.4.8 on Catalina the chances if it being fixed are very low, although it's hypothetically possible they could issue a revised Pro Video Format file which is compatible with Mojave or earlier FCPX versions.

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Last edit: by joema.

MXF Crash 26 Apr 2020 19:32 #106594

  • James Branch
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Thanks for the reply. The project is made up of an eight angle multicam clip and five of the angles have audio filters applied to the audio components therein. That is, I think, the main difference between this and the previous edits which have exported without issue. I'll do some test and report back. Thanks again. James

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