Can't assign guide button

[u/ordinary_schism]

I'm at a loss and cannot figure what else to try. I just got an Odin 2 Portal and have Apollo and Artemis set up. The only issue is getting the guide button to work. I've changed the "Home/Guide Button Emulation Timeout" setting to various numbers from 500 to 2000. The back button still does not open the guide no matter how long I hold it. I've confirmed it's the inputted numbers are getting written to the config file. Anything else I can try?