Can't customize keyboard shortcuts!!

I'be been finding more and more bugs inside Resolve. I thought this was a professional software but not being able to customize keyboard shortcuts is a total slap in the face. I can't take this software seriously anymore!
I am trying to assign "Opt+U" to the "Zoom Out" command. I can't. Yes, I did delete the previously assigned command for "Opt+U". I even opened the text file and manually changed it then re-imported it into DR. Still nothing.
Currently, "Opt+U" is assigned to the "Zoom Out" command. But when I press "Opt+U" absolutely nothing happens.
I have "Opt+O" assigned to "Zoom In" and that works just fine.
I've found other commands like that one that I'm not able to customize but I think this one is a good example. Can someone on a Mac please try to see if they can assign "Opt+U" to the "Zoom Out" command so I know if it's just me or if it's Resolve?
Thanks!
I am trying to assign "Opt+U" to the "Zoom Out" command. I can't. Yes, I did delete the previously assigned command for "Opt+U". I even opened the text file and manually changed it then re-imported it into DR. Still nothing.
Currently, "Opt+U" is assigned to the "Zoom Out" command. But when I press "Opt+U" absolutely nothing happens.
I have "Opt+O" assigned to "Zoom In" and that works just fine.
I've found other commands like that one that I'm not able to customize but I think this one is a good example. Can someone on a Mac please try to see if they can assign "Opt+U" to the "Zoom Out" command so I know if it's just me or if it's Resolve?
Thanks!