I've just had a problem where my Skoda Superb Estate 2011 panoramic roof wouldn't close completely.
It's the first time I've used it since last autumn and I often have a problem with it on first use.
It opened a bit then stopped and same when trying to close it. Sure, the runners/rails/tracks were a bit dry but was that it?
I sprayed some silicone spray on as much of the track as I could get to and tried again, hoping that the silicone would spread to the bits I couldn't reach.
Meanwhile, I learned that there is a 'force limiter' that stops the movement and moves it back a couple of centimeters if it detects a blockage. There was no blockage but the jerky movement suggested that that was the force limiter in action on the dry track. I also learned that if you pull down the edge of the control knob when turning it it overrides the force limiter. Once the roof is closed you can pull down the edge of the control knob for about 20 seconds (without trying to move the roof) and it will do a reset of the switches and mechanism etc.
Anyway, the silicone did the job and now it opens and closes fairly smoothly.