Well, I can see the presentation without a problem.
I can see it too but, for those that can't, I added a link below it.
BTW It looks good but the PBR version of the jetway glass seems to be much darker and less transparent.I wonder how it will infulence the visibility of the crew/pax walking in the jetway.
It's not less transparent. It's looks less transparent from *that* light angle, because it reflects more light, as it should be. That's the whole point of PBR: materials looks realistic, and it's entirely realistic that at a specific angle, a glass material would reflect so much that you cannot see what's behind. But, of course, it would be enough to move the view, and you'll be able to see what's inside.