how do you tell which motor is over heating from the screen error says motor overheated, reducing speed to safe return... i have felt all motors when returned from 6-10 minute flights. all seem to feel same temp. i have brand new props on all motors, all free spin same with no power. hovers great, flys great, but after a while in the air, i get overheat warnings on dji pro screen. if i push it more, i get a battery overheat alarm also. if i just hover with it, they will not overheat. any ideas?? i have heard that if a prop is off balance, or motor off balance, this will cause it also. i dont know how to tell which motor is alarming. any ideas????