This is the popup message I get when trying to post using both Firefox and Chrome. It looks like the message not accepted but when I look at the thread it is there. AFAIK this is only happening with the Cafe site and only with replies to messages or edits not first post to a threadOops! We ran into some problems.
Oops! We ran into some problems. Please try again later. More error details may be in the browser console.
Looks like this once I press the save button after edit