bus , truck (and heavy auto-transmission) won't shift up [Solved]

hi, when I set up the key-mapping and check if everything was ok I just notice that the bus, track and heavy automatic transmission vehicles won't shift up (even with the clutch pressed) but only shift down, I assigned gear shift up at G, shift down at B all shifting assistants are off, what to do to fix the problem

 

as something else bound to "B"?

 

just found later the previous week that the bus had its own keys and b was one of them , i reassigned these keys and transmission works again thanks