It’s definitely an ED known bug see this post. https://forums.eagle.ru/showpost.php?p=3493113&postcount=10 look at the bottom of the post at known issues.
The best bet for you on that one is to speak to JKAGary over at Flyingstations (you are a member there). he built the ones for FSX, I did the flight deck textures for him.
I was on the lusty 2005 til 2007
Still looking good, Think of it as Lego bricks, build the ramp as a entity of its own and then attach/collapse it to the flight deck.