For the last couple releases group chat names have been a little twitchy. I have not seen "Loading..." for a while.
However, sometimes instead of displaying <name>: <message> I will get <name><name><message>, note the lack space
THis generally happens when I switch active chat panes to a group chat with a long log with a lot of activity that I haven't been eyeing for a while.
Nocturnal with crickets.