I have a Mavic 2 with about 50 good flights on it with no problems. Now, in rth, it decides to go from 0 to 24 then halts, (and I mean speed brakes) then goes up to 24 mph, speed brake to 0, speeds up to 24 again, speed brakes, again and again--no end to it. The only way home is to turn off rth and manually fly it in. I've tried the following things: latest firmware and app update yesterday. Cleaned all sensors. Since it acts like it would on a collision course, I've turned off all sensors. Changed batteries. Changed modes from P to sport mode. Tried it in different altitudes and directions. Calibrated compass twice, this because for no apparent reason, I started getting a mag interference warning at about this same time which is off now. Any ideas on a fix? Thanks in advance.