It’s likely mapped to more than one control… there are separate settings for the Cockpit Camera, External Camera, and Drone Camera… so you might go back in to the config tool, set the criteria on the left to “Assigned” then “Expand All” so that you can see all he possible locations that button one was assigned (you might have to scroll a few times and push the button). I learned this when I set up one of these for my camera controls:
For example, that big grey button above labeled “All Camera Reset” has three different mappings.
I have my PTT mapped to the big red button on the right hand side of the Alpha Yoke, but I use Voice Attack for that.
Just my $.02.
Jim-Sim