Try holding the switch down after the window stops moving and open and slam the door while keeping the switch pushed. Mine will freeze in a spot from time to time and this gets it moving again.
I suspect in my case I need to lube the tracks, or the motor is developing a dead spot, but I'm cheap and lazy and won't change anything until it becomes a real PITA.
Lift motors are usually pretty easy to change, and self-explanatory, room to work being the only issue.
If yours has the "auto down" feature, and it seems like that is cancelling window operation, it could be defective also. I think it's part of the cluster, and just cuts the connection when load on the motor increases as the window hits the stop, making a bi-metal connection click off, like a turn signal relay. I don't know that for sure, but that's how I picture it, and it has that kind of sound to it when it clicks off.