Double Pocket Door Keyed Lock - Just a couple months ago I went over to repair a pocket door that was closing at a bizarre angle. This is the first time I'd ran into this sort of scenario and was undoubtedly lost. I got a torch and started looking within the pocket door frame. I had trouble finding the issue but when I did it was apparent.
The bottom of the door would stick out about an inch and a half, as the pocket door was skidding closed it works perfectly but when you went to open it. The trouble turned out to be as the door slid back into the framework the tracking would hang down at an angle in the weight of the doorway and the track was missing a screw in the back. There is no solution as it had been at that back of the pocket door frame near the framing itself to achieve the screw.
This is the only thing I could think of and would require a wall patch that is simple and some paint to help make the repair whole. This job took me about one hour to cut the hole and replaced the screw that had fallen from the pocket door track. Then I use some quick setting drywall plaster plus some fiberglass drywall tape to repair the wall. This took another hour to finish the drywall correctly.
Some pocket door troubles are a little more easy to repair than this one. Most pocket doors seemed to have troubles falling and eventually are left closed, never to be used again. Painting the doors over and over again can actually increase the depth of the door or the doorway to swell keeping it from opening correctly can be also caused by excessive moisture in the house over long amounts of time.