1. After Effects Version 23.1.0 (Build 83) / Media Encoder Version 23.2.1 (Build 2)
2. macOS Monterey version 12.6, Mac Studio 2022
3/4. I'm trying to export some short, simple animations with transparency, but something about the animation compression is severely broken. The Format is Quicktime, codec is animation, max render depth, 8-bpc + alpha, max render quality. It exports as a file unrecognizable to QuickTime, and when opening it in VLC it's off color and choppy (gif and exported video attached). Other video codecs (Apple ProRes 422 and the like) seem to work just fine, but I want to export lossless movs.