I only tested this on the Boeing 747-400 and the Boeing 737-700. The 747-400 was fine, but for the short 737-700, the bridge was connected but the box part did not go up. Now as I said, I only tested this on the 747-400 and 737-700 so I don’t know if it’s like that for other planes.
1 Like
Hello there! Welcome to the Community!
It doesn’t go up because it is level with the rear door at the truck’s “original” height - so it doesn’t need to go “up” to meet the door.
On the 747 for comparison - the truck lift does need to go “up” to meet the height of the rear door.
Actually, this isn’t true.
The back part should rise anyway.
Just look at this:
So @Plane28 is actually right. 
Unfortunately, at the moment the catering truck isn’t able to do that.
3 Likes
Not sure how I missed that…thanks Jan :)
1 Like
This has been noted internally.
Hopefully this will be fixed in a future update. :)