Every time I close Minecraft the version I configure for the server I want to join is deleted/lost and it resets back to Auto. This is a great mod, but this is a frustrating bug.

Can you provide more details on your setup? This doesn't happen for anyone else.

This doesn't happen for anyone else.

I also encountered this little bug, but it didn't bother me much, and I just didn't pay attention to it.

Can you provide more details on your setup?

Yeah, I'll zip up my entire modpack folder so you can get a full picture.
https://www.mediafire.com/file/czx2zaan4fq4yeq/MadPack+1.17.1.7z/file

@Earthcomputer Any luck?