I need some help to understand what happened last night. I was flying the Mavic in sport mode like I always do with not problem. The Mavic start behaving erratically when I push the control forward and the yellow light start flashing. Almost hit a tree . In GPS mode is normal but the yellow light still flash taking turn with the green light too. It never happened before that's the reason I'm concerned. Now I'm afraid to fly in sport mode. Another thing there wasn't any warning on the screen during this ordeal. Any help would be appreciate thanks