Why does my phone stop receiving calls after I use Maps or Waze

[Android Central Question]

After I use my location services for Maps or Waze, my phone stops receiving calls. If I restart phone, I can receive calls again. I can make calls and send and receive texts. Phone does not ring or show missed calls, just voicemail notification if caller leaves message. Tried cell provider. They are stumped!

 

[B. Diddy]

Welcome to Android Central! Which phone? Does this happen in Safe Mode? Waze won't work in Safe Mode, but Google Maps should (since it was preinstalled).