Settings (cog) button

Quick query if I may?
Is it possible for the settings button (cog) to be disabled?

I'm running two portals on my mag254, I swapped between the two and when I wanted to 'reload the portal' the settings button wouldn't work - I had to access system settings using power off/back on method.

The button works on my other portal (IKS66)

Any ideas?

Cheers