I stopped having issues when I switched instances, so that sounds more like it’s just lemmy.world groaning under the pressure of all the recent sign ups and activity more than a Memmy problem.
I’m replying to you (this is gkd) from another account just because I can’t use my main account on Lemmy.ml. It’s definitely a server issue.
I’m going to work this week on far superior erro handling and stuff so you know what is happeninf instead of just getting infinite spinners. But yea, it’s definitely instance related.
It's probably because you're on lemmy.world and they're getting hammered under the new load from all the new users. I have a second account there that I signed up when my instance was going down constantly. Mine has since upgraded their hardware and everything loads fine but when I go back to lemmy.world I get constant errors when voting, submitting, or even just loading content.
If you're not too attached to your account yet, try signing up a new account on a new instance, or just wait and I'm sure they'll get it all sorted!