I have a similar issue on my Jayflight at the top but upon further inspection I found that the slide IS contacting the seal, and it just appears that the aluminum trim is bent out a bit. I did find that all the bolts on my slide adjustment were loose. I'm thinking the dealer tried to adjust for the slight gap and that was the best they could do. I made a few adjustments and tightened everything down. "LEFT WELL ENOUGH ALONE"
Yours has too much of a gap. I would personally adjust it myself, BUT you have to watch because you can create a gap at the top if you pull the bottom in too far.
2016 Jayflight 32BHDS 50amp 16in LT tires
2006 Chevy 3500 CC Dually 6.0 GAS