[B3] Interface glitch when disconnecting server

[turn_on_a_dime]

Today I encountered this glitch:
I attempted to leave a server - the game showed me the "are you sure you want to leave" dialog, and at that moment, the owner of the server closed it down. The dialog telling me that the server closed the connection appeared on top of the previous dialog.

Upon dismissing the new (server closed connection) dialog, the old one (are you sure you want to leave) remained stuck and would not respond to clicking. The game appeared to have returned to the main menu in the background, but it was all blurred out, with the stuck dialog remaining on-screen in front.