When I go to use the left air trigger (blue) after holding it down for now more than a second it starts to press it rapidly
I have noticed the same issues lately...it happens when I m playin pubg...I hav set the Triggers button tap force level to 6...this has reduced the issues for me.
Regardless of where you're holding your finger? Have you tried different sensitivity levels?
I have removed the aero case for a day and now my air triggers are working perfectly. You should try this