I can't use Alt as a shortcut for the Eyedropper tool anymore.
I was used to press Alt as a shortcut if I wanted to use the Eyedropper tool, but all of a sudden I can't do it anymore. I had had to reinstall my Wacom tablet owing to a problem with drivers, I did it successfully and (I don't know if these things are correlated) while I was re-setting up all of my custom shortcuts I realized that only letters from A to Z are allowed as shortcuts for Tools. This really upsets me.
Is there a chance to fix this issue?

