Odd control issue in mini 2

Today I was practicing with the new mini 2 using litchi. I flew a few waypoint routes and all went fine.
I had a few minutes of flight time left and flew out about 950 feet, at an attitude of 165 feet. I was hovering taking a few photos and the drone backs up, then turns 90 deg to the left. I was using the zoom function. I got no warning, connection to drone was ok, and at least 12 satellites.
I initiated a return to home and she starts back. I then canceled the RTH, and tried to replicate the issue. No problems, then just " joy sticked" to launch point manually not using RTH mode.
Any ideas what could have caused this anomaly?

Maybe it was initiating a return to home on its own due to low battery?