Someone in a previous forum that I posted this issue with has the same issue. I can get him to confirm here if that helps.
It could be someone that has installed the same conflicting scenery as you have, it might help only if he would remember that.
If it was a problem with the JFK scenery, everyone would have noticed it by now, since I don't think nobody tried to land on 4R it wouldn't be possible not to notice it, if the problem was with JFK.
As far as your suggestions, I have no other addon scenery, except the FSDT KORD, and some freeware EGPK scenery.
You probably have, but you don't remember. As I've said, it might not be an airport scenery that you installed, but also an afcad that comes with a traffic package that has a different altitude setting.
It seems as though I am hitting that cliff that I pass over right before approaching the runway.
This is clearly shown from your video. And it's clearly caused by something else because, as I've said, nobody else noticed, if the problem was in JFK we would have *lots* of reports from users here, and just to be sure I've checked it again after your report and of course, it doesn't happen.