Our 2015 23RB pulley mounts were not very secure to the wall. I speculate that there was insufficient metal in the wall to adequately support the pulley bracket. As soon as I was out of warranty and before a failure, I did this mod:
http://www.keystoneforums.com/forums...pictureid=3761
The aluminum plate bridges the tubing along the bottom of the ceiling / top of the wall and the tubing around the slide opening. I also went to 1/4" thk aluminum instead of 3/8" thick plywood used during manufacture to have the cables better aligned with the pulleys. The same could be done using a plank of hardwood instead of aluminum. Just make the plank tall and wide enough to be able to spread and apply the load where there is tubing in the wall.
BTW: Our TT was not on the recall list.