hello, my rider 550 behaves abnormally: accidentally, it loses gps contact, the screen remains blocked and does not scroll. Other times it doesn't bring the pointer back to the road but a little to the side, then it gets back on the road and then gets lost again: other times it works well. All this on the bike and in open spaces, not in the city. Tested 3 times in the car, there seems to be no problem with signal loss. Is there a way to check the number of satellites it takes? Or some other way to understand what this strange malfunction depends on?