obstacle

Hello friends, Has anyone experienced this problem: My Spark almost always confuses a horizon (especially a bright sunny horizon) with an obstacle and it refuses to continue flying forward. I have to rotate it and then fly it backwards to overcome this, but this sucks... It alarms me that it...

While flying inside the house, the forward obstacle distance keeps oscillating from the real distance (say 12 feet) to 1 foot. This fluctuation occurs about every 1/2 second. The DJI Go 4 app shows forward vision sensors "Normal". I've seen references to calibrating the vision sensors on the...