not move with the bearing
Have you followed troubleshooting guide?
in the guide I have not found anything about it, the problem is that the arrows always mark the same position, in the log this appears to me id: 592881, time: 2018-10-08 13:05:04, lat: 37.25298, lon : -7.20540, speed: 0.0, course: 0.0
it seems that the app does not send the course
What accuracy are you using? Course will only be available on high accuracy and if you enabled GPS on your device.
hidden application does not show the image does not move with the bearing