I can't bind 'Jump to location 1' to the 'F1' hotkey

For some reason I can’t bind ‘Jump to location 1’ to ‘F1’. I can bind it to any other key. For some reason F1 is off limits. I’ve browsed the forum and only found two topics with a similar problem without a reply. Also on non-Blizzard sites I couldn’t find a solution that works for me.

I use a Zowie Celeritas II keyboard on Windows 10. Reinstalling the game didn’t solve the issue. What am I missing?

What error message do you get? I just tried it and all I got was an conflicting hotkey message that I can ignore with Allow Toggle Conflicts enabled.

There is no error message. It just won’t happen. Allow Toggle Conflicts is enabled.

Tried it again and cannot replicate this.

Do you have an special keyboard with unique features like additional modifier keys?
Do you have any additional equipment connected to your machine like an soundboard?

Just to check, can you use F1 to any other hotkeys, just to check that the button is functional?