Motors accelerate with rc power shut off

I have a differential drive set up. Everything works great, however when power to the motor controller is on when I turn off the rc transmitter the motors accelerate. I have tried to fix this in advanced settings in the control center but can’t seem to shut the car down when I shut off the transmitter. Can you help?
Thank you.

Hello, Scott.

Could you clarify which of our product you are using? It sounds like it might be one of our Simple Motor Controllers or Jrk Motor Controllers; if that’s the case, could you also post a copy of your settings file? You can save a copy of your settings file from the “File” drop-down menu of the relevant control software (i.e. the Simple Motor Control Center or Jrk Configuration Utility) while the controller is connected.