This 2015 has never had a slide issue since we bought it new. Even today as loading for this quick trip. But after 3 hrs (on turnpike and main blacktop roads) as we opened, the kitchen slide seems to have grabbed the flooring, as it extended. This 8" ◊ 3/4" mark is near the of the sofa, not quite center of the slide. After rain paused, I crawled under the slide to see the marks (8-12" ◊ 1/2") on the underside black plastic of the slide. I have found nothing as a cause, yet. Inside, opening the sofa, nothing to be found. Since we have a driving school scheduled at 9am, we'll have to close--fingers crossed. Any Ideas or thoughts appreciated, folks.