I was wondering what would cause the Desired Altitude to jump in Alt Hold mode in Arducopter 3.3? I was flying my hexacopter in Alt Hold mode outside when I decided to try and fly under an outdoor overhang. I had the throttle mid stick to maintain altitude and as soon as it went under it started climbing and I could hear the motors start increasing throttle erratically. I was able to land it, but when I was looking at the data logs (Pixhawk BTW) I saw that the desired altitude had jumped randomly even though the throttle input had not changed. I was under the assumption that the throttle input
was the only thing controlling the desired altitude, but what else would cause this behavior (right before the 24000 mark on the x-axis)? I attached a picture of the graph corresponding to this behavior and the flight log. Thanks in advance.