I took it out tonight but it was extremely brief. I noticed the XSP wobbling about 20 seconds into the flight so I immediately landed, an erratic landing but a clean one. I went to start up again and the one rear motor barely spun, the other 3 were fine. So that was that. I went to pack up and leave. As I was disassembling the props, I feel that motor is much hotter, the propeller won't budge at all, I tried using the plastic wrench with no luck at all. It's almost like the propeller fused itself to the tip of the motor(?) I don't want to try any heavy duty tools fearing I'll break the darn thing. Deflating, I just got this back from Autel last Thursday, this is only my 3rd flight since I got it back. I don't know what the issue is now. I'm not having much luck with this XSP.