OK they said that it is FSDT's problem
From your description of the problem, it's clearly an AES problem. Otherwise, how do you explain the problem doesn't appear if you disable the AES layer ?
After the demo time runs out and the building's disappear, the jetways are positioned properly, the double jetways are gone, it appears to them that the "extra" jetway is from FSDT
This simply can't be caused by our Trial feature. Jetways are NOT affected by the Trial, we don't handle them, we don't let them appear and disappear depending on the Trial, they are not protected in any way and not handled by our Trial system.
This is the reasons why, when the Trial ends, the only thing remaning are the jetways, since they are entirely separated from the Trial and not affected by it.
Instead, as far as we know, AES does check if our sceneries are purchased or not so, as long the scenery is in Trial, you are seeing both AES and our jetways and, when the Trial ends, the only thing remaining is our own jetways so, it's exactly the opposite: the double jetways are the AES ones, which is of course consistent with the fact that, if you disable the AES layer, they are gone.
Since the normal behaviour in AES is to exclude the jetways coming with addon scenery, and replace with its own, the most likely cause, is their exclude file is failing to exclude our jetways, maybe not all of them, but at some places the exclusion areas are wrong.