I'm not really sure what's causing this, but I'm using Aseprite on two different Windows 10 machines, both running 1.1.6. On one machine I can simply press Alt+1, Alt+2, ... to swap brushes, but on the other it doesn't change them, and acts as if I only pressed Alt.

Both use English US keyboard (the normal one).

I'm not really sure if there's another program interfering with this, but there shouldn't be, as both machines have very similar setup.

Changing the hotkey to something like ; and ' does help and it works after that, which would indicate that something is interfering with the hotkey. But if I press Alt+1 in the hotkey setup, it does detect it properly, which makes it seem that the key press gets to Aseprite, see