Well, the back sensors are pretty darn sensitive.   Took off for a short flight this afternoon and almost immediately, and it had this, almost, ghost-like intermittent obstacle detection warning that kept going off in the rear....  brought her back down and saw the USB cover not pushed in all the way.  Gave it a little push to fully seat it and the complaining stopped.

Thanks for the head up!

Did your mother not tell you always keep the door closed

Hello there. Good day and thank you for sharing these interesting information with us. Have a safe and a happy flying always.

thanks for the tip.

Nice to know. That cover is a bit stubborn, I admit...

I have noticed a few times in mid flight, up around 200ft with no obstacles anywhere around the drone, getting a quick and very faint obstacle warning from the rear on the screen. My first thought was maybe the sensors, under some situation, were barely picking up the propellers or something. Ill keep this in mind as well

My sensors acted up so much I now turn them off. Hoping the firmware fixes.

See, now I have experienced the opposite result. I tested the OA on a very narrow local antenna element with the rear sensor and it could not detect it at any safe distance (<10 inches).