Mine separated from the wall too; but also was dragging on the carpet. The two rollers under the bed were attached to a 1X4 which had sagged allowing the side frame to drag the carpet. Also the side boards being made from MDF developed a curvature from the weight of the bed also contributing to the drag. All components of the bed frame were poorly engineered and constructed. Other than the sideboards, all other wood was low quality scrap that would not meet Home Depot standards. I decided to build a complete bed frame. It now sits 1" above the carpet, is stronger, and weighs less than the original frame.In addition, it now has 4 rollers under the main frame for support and ease of movement.
I believe my previous Schwintek track failure was caused by the bed dragging. The dealer that replaced the tracks did not spot the bed drag. I discovered the problem after spotting the 3 lower outside screws holding the slide in place had popped the heads off and the metal strip would push away from the side of the trailer when retracting. Attached are some pictures of my new bed frame. Hope it solves the problem.