You can't use any abilities while holding Alt

[nitronezumi]

As simple as that, if you rebind the Upgrade Ability to anything else other than Alt + 1 or whatever the ability is, you can't use abilities while holding Alt. For example, as I'm left handed, my crouch button is on R. Alt, so i have rebinded all upgrade abilities to something else, and i cant use any ability while sliding.

 

[gt162]

Try unbinding Extra Info from Alt

 

[nitronezumi]

Here is a small showcase. Though the mod I'm using here to detect the keystrokes doesn't recognize the scroll-wheel very well, it works with different key binds too. And the bug obviously occurs without mods too, so its not an issue on that part.
I've also tried unbinding the extra-info key, to no avail. Changing the crouch to a key other than Alt makes the bug dissapear, but I'm a lefty and I'm just very used to that now, and this bug shouldn't occur if the rebinding is not hard-coded, which I think it is to some extent.