I fly and record soccer games, Have found that if I fly quickly from side to side, the gamble adjusts to the tilted drone to keep the horizon level.... That is, until the drone stops... then the gimble gets confused as to what is level, and what is not. Seems like if I just accelerate and fly straight for a bit, it helps, but takes a good minute or 2 to level back off. which is an eternity when your battery life is about 17 mins at best....
Just my findings...