Chat Bug - Command not used correctly

I don't know if anyone else is getting this, but it seems to happen to me quite often after getting kicked out when I've tried to get into one of the solo duties. (Yes, I'm hopelessly optimistic that one of the times I click I'll succeed.)

After getting kicked out with the Duty Finder server message, if I try to type something in my LS chat or FC chat - any kind of chat, really - I get this message: The command "whatever it was that I typed in chat" was not used correctly.

Sometimes this clears out and the next time I try to type in my comment, it goes through. Lately, though, it ends up being to where I can't chat at all and have to restart the client to talk to anybody.

Server: Goblin
Character: Rylock Mairren