Herelink button mapping issue

Hi all I have setup button C on the herelink to toggle a servo between 2 set PWM however long press C works however the short press C switches to FWB-A mode Anything I may have done wrong? It was working correctly before. The 2 PWM are on the same servo channel

Check your ardupilot setting in GCS. Maybe the button C channel have been re-assigned to mode changing?

Did you map it in Herelink Setting App as sbus or in Solex as mavlink button?