Usually an issue with one of your connected relays
Habla.news won't let me publish. Neither on FF nor on Chromium. nostr-tools update appears to have introduced the issue. Using nos2x-fox.
https://github.com/verbiricha/habla/issues/21
Snort won't allow me to whine about Habla neither.
https://github.com/v0l/snort/issues/527
Somehow Nostrgram is ... oh, ok, it appears to have loaded now, 5 minutes later. Anyway, ... posting from iris.to ...
Discussion
Well, still a bug in the client if it doesn't tell me how to move forward. It should tell me "failed to connect to relay xy" and work otherwise. Ideally it would keep track of which relay the event failed to publish to but no client is good in that aspect.