Just received my new mavic 3 and has this strange brown mark on the leg Underneath the motor. Not sure if I should return or not. Tried removing with washing up liquid and alcohol.
@Captain744 ,its probably just because of the angle ,and some distortion from the closeness of the camera lens but the gaps at the bottom of the motor with the stain look a lot bigger than the opposite motor ,have you checked them out ,the stain could be excess lubricant that was applied during manufacture
I contacted DJI they confirmed it was indeed a stain, but didn't explain how it got there. They advised me to either use as normal or exchange the drone. I exchanged the drone with amazon.