So this happened either when I pulled the slide in before taking the rig to a campground for a friend to use, or when it was deployed when I set it up for him. I always brush the slides off so I know it wasn't damaged when I prepared it for the trip, at least prior to running the slide in. I discovered it when I went topside to clean the slide again before breaking camp. This is the kitchen slide that operates on the schwintec (sp?) system I believe. It clearly was rubbing badly. What do you think happened here?