Bug for create guild

Hello, for only 1 week, as soon as I am invited to a raid my screen starts to freeze until I disconnect. And when I reconnect, the screen freezes again instantly and this in a loop.
As soon as I am kicked out of the raid group, everything goes back to normal.
Please note that I have not changed anything since BC opened and that this has only been happening recently. I tried lowering the graphics and removing addons but it does not work.
Do you have any advice or even better, a solution please?