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What solved all of the above problems for me, (could be one of them or a mix)

1. delete all the chat tabs, create a New one, and delete the last one that you couldnt delete.

2. /reloadui x2
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for the eleventh time, delete all your chat tabs, create a new one and delete the last old one as well...

and general tab? make a custom, name it general, put the **** you want in it /facepalm
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