Car appreciation... the aesthetics, the engineering, etc

Any common reason why my electric window might only be going down a few inches? Not on the rails properly or something?

motor sounds fine for the few inches which makes me think it isn't that

what kind of car? What the history of the problem? Does it just stop or does it immediately bounce back up?

Knowing nothing, and aside from a mechanical interruption as already posted, it may be that it needs to be reset. put the window up all the way, release, then hold the button in the up position for 15, maybe 20 seconds. (really I've found 10 seconds works on my Jetta). Then try to go down. If it doesn't go down, something else may be wrong, or your car doesn't respond to the procedure i just described. If it does go down, then repeat the process at the bottom.... release and then hold down, etc.