Barn Door Style Pocket Door - Just a couple months ago I went over to fix a pocket door that was shutting in a bizarre angle. This was the first time I'd ran into this sort of scenario and was undoubtedly lost. I got a torch and started looking inside the pocket door frame. I had a hard time discovering the problem but when I did it was obvious.
As the pocket door was slipping shut it would work flawlessly but when you went to open it the bottom of the door would stick out about an inch and a half passed the door jam. The difficulty turned out to function as the track was missing a screw in the very rear so that as the door slid back to the frame the tracking would hang down at an angle from the weight of the doorway. There is not any approach since it was at that very back of the pocket door frame near the framing to reach the screw.
This was the only thing I really could think of and would require a straightforward wall patch plus some paint to help make the repair whole. This job took me to cut the hole and replaced the screw that had fallen out from the pocket door path. Then I use some fast setting drywall plaster plus some fiberglass drywall tape to repair the wall. This took another hour to finish the drywall properly.
Some pocket door problems are a little easier to fix than this one. Most pocket doors appeared to have problems sliding and eventually are left shut, never to be properly used again. Painting the doors over and over again can in fact add to the thickness of the door or excessive moisture in the house over long amounts of time can also make the doorway to swell keeping it from opening properly.