I'm going to burn this car to the ground!!!

Hi all, a few months back my orginal window cables snapped on both sides, I got a cable repair kit for each side but they were hopeless, so plumped for a more expensive set off eBay which worked for about 2 months then the clips for the glass snapped so I got a set of wahr regulators from ECP while they were on sale, fitted nicely and they were like oem was all chuffed then tested them, worked fine 3 times now it constantly just wants to stay down. The motor gets extremely hot and the runners are clear and clean yet when it attempts to go up it's mega slow then stops 2/3 of the way up And the motor has started making a weird noise as if the gears aren't mating. Am I missing something on this install cause I'm so close to pouring a gallon of esso's finest over the car and introducing it to a flame!

Please help!!!

No. I ran then when they weren't bolted to the regulator and they run fine in both directions, pulled the motor out itself and gears are all fine.

I've checked everything, I've had the top half of door out more times than I care to remember, the glass runs freely when it isn't connected to the motor. The runners have been cleaned and lubed, there is no kinks in the guides or anything. The wires run freely and are all on the pulleys so I really can't figure it out. It has the same characteristics as if the anti pinch mechanism is kicking in. It gets so far up and then decides it's just gonna go all the way down.
I was curious if there was supposed to be initialed same as the throttle body on vcds.
I refuse to be beaten by a machine and refuse to pay audi's ridiculous prices!!