I have used CrewChief for a while but lately, last couple of weeks, he only hears certain commands. I do use the keyword "Chief" and wait for the beep.

for example:
He understands "clear all tires", but he doesn't understand "change all tires".
Also, I am no longer able to ask how much fuel is left.

I find it odd that it understands clear all tires perfectly but nothing else that I use seems to work.

Any suggestions?