Today after powering up the mavic controller it started beeping loudly with a message across the screen that read: "Stick Error+Re-CTR Stick".  I had no idea what was going on but I kept moving the sticks around and the beeping just continued.  For some reason it went away and I flew one battery.  
After placing a fresh battery in the drone and powering everything back up it started the same error message and beeping again.  I then went into the settings and clicked on: calibrate controler or sticks or something (can't remember).  It took a bit to get it done but finnally did a sucessful stick calibration.  Yet, when I took off with the mavic I found the the right stick forward movement was not effective.  I pushed the stick and the drone just remained in place.  All of the other functions on both sticks was still working.  I decided to call it a day.  

After arriving home I conducted another stick calibration and went into my basement (because I live in a NFZ) to see if it was fixed and found that it the right stick for forward movement function was now working.  What is all this about?  

Probably the RC needs the calibration.
Please test more and if there's any further issue, feel free to let me know.

I had something similar except my stick was completely dead. Turned out to be bad hall sensor in the controller and needed a new controller.