Google Maps shows constantly rotating direction despite other compass apps working correctly Google Maps reports rotating direction (0.5 rotations / minute) with stationary phone. The compass is calibrated and works correctly in compass-specific apps.

https://www.youtube.com/watch?v=x6uOI5g8xbc

Steps to replicate:

After booting into Safe Mode and calibrating the compass via rapid figure-8's (or slow, or rotations on table), the direction in Google Maps slowly rotates.

EDIT: I did a factory reset and, before logging in, Google Maps still has this error. I think it may be a hardware bug at this point.

Apps affected:


Google Maps (Safe Mode and normal mode)
GPS Status (only available in normal mode)


Apps not affected:


"Compass" (orange circle logo)
Sensors Multitool (shows correct magnetometer readings for X, Y, and Z. Confirms correct calibration)
https://goo.gl/photos/SavNsaY2PyNPa17G8


Troubleshooting steps I've tried:


Calibrating compass


Rebooting in Safe Mode 
Disabling/re-enabling Google Maps (includes data/cache deletion)



Specs:


Nexus 5X 
Android 6.0.1
Google Maps 9.34.1
Same issue here on my Galaxy S-6 Edge Plus.  The blue dot/shadow spins rapidly.  Master reset did not fix.  Verizon actually replaced the phone and the new phone acts up as well. I went to Best Buy Samsung help desk and they mentioned an issue that is going to be corrected (soon) as an update to Google Maps. I hope this rapid spinning doesn't mess up any of the sensors on the new phone...