What if you go to Library/Audio/Plug-Ins/ - Are there any plug-ins in any "Components", "VST", or "VST3" folders?

Had the same problem - I have iZotope RX 6 Elements installed. I went to the preferences in RX 6 Elements and disabled Audio Units and VST plug-ins. Relaunched Media Composer and it worked.

Fixed! Thanks for the quick turnaround!

Have you seen this? http://avid.force.com/pkb/articles/en_US/Compatibility/en267087

Not sure if I had this issue before. Last time I exported an AAF was in September with the latest version of MC at that point. However, I may have rendered all audio effects for that export before making the AAF. I did not try exporting with either or both of the audio effect options unchecked this time.

Update: FIXED! The problem was Media Composer was crashing when it tried rendering an audio dissolve. I rendered it before I exported the AAF and the export completed without issue. This sounds like it's definitely a bug in one of the newer versions of MC. Can someone from Avid open up a Case Report? Thanks.

Trying to export an AAF file from MC 2018.4 and everytime it completes, the application crashes. The exported files are all there in the aaf folder on my hard drive, but the aaf says "zero bytes" for the file size (not sure if this is supposed to be zero since it's a metadata file). Tried exporting with aaf protocol off and still get the

Right now I have a $50/month annual Media Composer license that was just upgraded to Media Composer Ultimate. I was wondering if there was any way to downgrade that license to the new $20/month Media Composer, or if I have to wait till that expires and buy a new one for the $20/month version. Thanks.

Awesome, thanks!

No macOS High Sierra 10.13.3 support?