So my front CCW motor has been moving around. First it was a tilted movement, meaning the motor would tilt very slightly from left to right. I tightened the 1.5mm hex screw right below the prop shaft and it fixed this left to right problem, however now I have vertical play on the motor. I can literally pull the motor up from the phantom about a centimeter, but it will sit itself back to its original position. Almost like pulling up a spring. The motor was already spinning a bit weird and was a fairly warm after a 6/7 minute flight. Could this be the bearings or the motor, and where/how to I go about fixing the issue? Thanks!