Aha! That is super helpful, thanks!

It’s still super annoying. Currently all formats work but:
JPG has horrid compression which cannot be adjusted.
PNG works incorrectly with transparency so the only format that’s usable is…
BMP. O_O Haven’t used BMP since 1999 or so until now. A simple animation is 5 GBs however.

A work around would be to export BMPs and transcode to JPG with the Tapeworm plugin.