Sven, my Veritas board came with a plastic strip (UHMW whatever) attached to the inside of the guide rail. It’s the same material lining the bottom of the track (not great durability, in my opinion, but it’s slick enough and keeps things moving). Tough to tell from your photo, but looks like yours might be bare metal? Might be worth asking Veritas about in either case. That abrasion is something they would have caught in development and/or will want to address in the future. No one tops them in quality control.