I’m assuming you are using the VEX micro controller and easyC or mplab, if not this still might fix your problem. Often I find that when operator control code isn’t working it is because whoever has written the code has forgot to put all the RC control functions in a while loop that will always be true.
Also it always is a good idea to post your tech problems on the public part of the forum in addition to the Expert part. That way you might get your problem solved sooner.