Apple Silicon & certain ProRes files can cause renders to fail - here's how to check / fix
Been struggling with a strange issue lately but I've narrowed things down, so I here's what I've found in case it helps others with the same problem. I don't think AE is the cause, but since AE is where you're likely to experience the problem, I wanted to document it somewhere. Symptom: a project containing certain ProRes assets renders fine on Intel Macs, loads and displays correctly on ARM macs but when you try to render them, AE hangs at the start of the render. The cause seems to be some ProRes files that have been created using ffmpeg. Not all files created with ffmpeg exhibit the problem. The ProRes files in question may not cause problems in any other software packages, but something about the way ffmpeg compresses them can cause issues with the M1 chips' hardware decoding, I'm guessing. We've been using ffmpeg to compress image sequences into ProRes files for years now without any problems, so this has been tricky to track down; it really does only seem to affect AE o
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