Can't export after effects comp in media encoder, using m1 beta apps!

Hi chrism9002341,

Thanks for writing in.

After Effects is not supported on M1 chip based computers natively yet. It running using Apple's Rosetta 2. More details: https://helpx.adobe.com/download-install/kb/apple-silicon-m1-chip.html 

Let us know if there are any other questions.

Thanks,

Nishu

Welcome to the joys of being a Beta tester! That's just how it is. Some stuff is not guaranteed to work on Beta builds and since you haven't offered any info on what device you are actually using, your comp contents and so on nobody can tell you more. Start by re-reading the release notes for whatever build you may be using. This may be a known issue. For anything beyond that much more specific info is required.

Mylenium