Unfortunatly, i also sometimes encounter this bug. Nothing has been found for it yet (Or if you aren´t you can update the game to current and it should work) and it sometimes Works again after 2-3 days.

Here u go…. https://discord.gg/NtUKPDM This Will also be fixed in the link on the page itself.

Nope, not yet.

I think adding this category wont hurt, if this got added i think id also start speedrunning this game