Same. I read some posts in various communities about how, post-hack, you had to log out and back in at Lemmy.world and that would resolve the fact that even though you appeared to be online in Memmy, you actual were not (as a result I couldn’t post or comment). But that didn’t work. On the flip side, there was no clear login for Memmy and the only thing I could think of was to delete the accounts and set them back up. Except that didn’t work either. Once I deleted my account from Memmy, I could “login” again. So I got mad (lol), jumped to Voyager, created a new account/logged in and that was that. Flippin’ perfect.