Hmm, no Problem posting from NoorNote Linux. Do you see any errors in the System logs after posting (in the right panel of NoorNote)? If not, could you send me today's log file in ~/.config/com.noornote.desktop/logs/ ?

Unrelated, but what if you spun up a testing node and only post to that on these sorts of test posts. One less variable to deal with, and most people who don't care won't see these replys.