Well, it was Tab before, but I also noted that it technically says tilde. If it now suddenly changed to that, it would be bad, because
my european keyboard only has that sign under a altGr configuration, which wont work. Console is also the only hotkey that cannot be configured in options of UUU, and also not in the config file.(I had already tried before posting here first time)
But really, your hunch is wrong. The UUU simply doesn't work with the new version anymore, because all the other independent hotkeys, like camera buttons, also don't act. I still have an idea though.
PaNiq: Since you had the same issue, I would ask if maybe did you update the game by overwriting, or was it a real fresh unpacking? That is the only thing I figure might be causing trouble, because I have done so, -like all the other times-, but maybe it left some interfering scraps this time.