Double Pocket Door Lock Set - Just a couple months back I went over to fix a pocket door that was shutting at a peculiar angle. This is the very first time I'd ran into this type of scenario and was definitely confused. I began looking within the pocket door frame and got a flashlight. I had a hard time finding the problem but when I did it was obvious.
The bottom of the door would stick out about an inch and a half passed the door jam as the pocket door was sliding closed it would work perfectly but when you went to open it. The problem turned out to function as the track was missing a screw in the rear and as the door slid back to the frame the tracking would hang down at an angle in the weight of the doorway. There was no method because it had been at that very back of the pocket door frame near the framing to achieve the screw.
This is the only real thing I really could think of and would require a wall patch that is simple and a few paint to make the repair complete. I then use some fast setting drywall plaster and some fiberglass drywall tape to correct the wall. This took another hour in order to complete the drywall properly.
Some pocket door issues are a little more easy to fix than this one. Most pocket doors appeared to have issues sliding and eventually are left closed, never to be used again. Painting the doors over and over again can actually add to the depth of the door or the doorway to swell preventing it from opening properly can be also caused by excessive moisture in the house over long periods of time.