Mine doesn’t change anything automatically as long as I set the transponder or radio before clicking the ATC response option that tells it to change frequencies or squawk. I set the squawk manually with the G1000 and change freq with the Logitech radio panel or by using the G1000.
Sometimes I just click the ATC response and then it will change automatically.
At least on the page you posted my settings are the same. Not sure what other settings might be involved.
Ok it turns out I hadn’t removed all keybinds and even though I had AI ATC turned off and the communication panel disabled, the keybinds bound to ATC PANEL CHOICE were still working in the background resulting in unwanted ATC changes.
To fix: disable ATC PANEL CHOICE keybinds which by default are set to 1-2-3-4 etc on the keyboard