Dont know if its a general lemmy thing but when I upvote a post and then click the post my upvote often disappears. Same when you upvote inside the post and then back out of a post onto the main feed.

Tried posting/commenting in other instance’s communities but only some people can see them I think.

I think I’ve saw some people say this is a general Lemmy issue just now with posts not coming through properly to other instances?