I wrote a message in the IT security chat room that appeared at the top of live room, before the day's earlier messages: however the ordering of other messages leads me to believe that messages should appear chronologically.
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is was a known issue that appears appeared in some cases when the message before went through some connection hickup.
Note though that if you look at the transcript, the message is in the right place, and if you refresh your chat window, it'll be correctly ordered as well; this
is was purely a display issue (which, nonetheless, should be is now fixed).