Is it this issue fixed in 0.19.3?
https://github.com/LemmyNet/lemmy/issues/4383
https://github.com/LemmyNet/lemmy/pull/4384
0.19.3 is a good upgrade
https://lemmy.ml/post/10890295
Or maybe your instance needs a restart, I think that was a bug in 0.19.2 but should be fixed in 0.19.3 as well? Where the federation queue would get stuck
0.19.3 has been out for a while now and even the more conservative instances (like programming.dev) who like to wait and see for updates, already updated to it a while ago. I follow the progress pretty closely and 0.19.3 seems to be better than 0.19.2 in every way, no new bugs. I think wait and see is a good approach, but 0.19.3 seems like it has surpassed 0.18.5 as the most stable version.