I had a similar problem with the pocket door... in my case the back-end track wheels came off the rails (not sure how it happened).
I removed the door from the rail by releasing the front track wheel (there is a white plastic piece that swivels to release the door from the track wheel). I then removed the track, put better 'stopper' screws at both ends & then re-attached the track using better & a lot more screws. After that I then re-attached the door.
The only thing that makes me uncomfortable is that I wasn't able to use screws in the back-end of the pocket.
So far all is well BUT I have yet to travel since the fix, so I'll have to see if the fix works once we hit the road.
EH!