Starting today I've been having an issue posting to piefed servers.
The account I've been posting with is this one, a Lemmy account. I haven't had issues before, didn't change anything with interstellar or my Lemmy account. I regularly post on the server wetshav.ing and my posts wouldn't work today. I also tested posting a a piefed help community and got the same error message.
Hmm looks like lemmy.world updated recently but doesn't look like there's any related changes so its weird that this just started randomly.
I just tested from my lemmy.world alt. @olorin99@lemmy.world posting into !testing@piefed.social and it worked fine.
https://lemmy.world/post/43941111 https://lemmy.world/post/43941201
The web client works but could you test from another third party app. Would like to check if its something specific to Interstellar or if something's up with lemmy.world.