Tab/Trigger R+ Stopped Working?

[ZeroX4]

well i dont know if i understand you at all

you got TAB binded to your R trigger and it stopped working?

if yes then your problem is that R trigger stopped working or TAB stopped working at all?

and R trigger CAN NOT be binded to any other function or can it?

and when i suggest you 2 things

"at 1st try to check if you can bind that button to any other function in controller mapping

next try to map it again to same function if above worked"

and i get answer just to 2nd one then you dont make sense