Let's just hope Umberto can figure out why 23 files in the texture folder and the .BGL file are missing, even after a fresh install.
I removed all posts about the shared .BGL and textures, which are no longer required (and we don't want to have a link on a file that might be updated in the future so it would create similar issues if somebody downloaded it after an official update).
The problem wasn't GSX, it wasn't an installer bug, and it wasn't a CDN issue either.
It was a bug on our upload program, which automatically sync the update server: it was programmed to IGNORE the whole "scenery" folder, which WAS correct when all jetways-related files were in the same folder, because jetways .bgl and airport services were always downloaded on the fly (because it was faster to extract them from a single .ZIP than individually checking one by one).
However, after we split the airports .BGL into the -2020 specific package, ignoring the "scenery" folder would cause not having the files required for the connection bridges to work ( the FSDT_WorldOfJetways_Lib.bgl and its textures ) on the server itself, the folder was just not there, because the uploaded was programmed to ignore it.
The key sentence here is your "even after a fresh install".
It's not like that, it's "ONLY after a fresh install". That explains why some users (including me) HAD the missing .BGL file and textures, and other didn't. Those affected were only those doing a fresh reinstall, if you just updated from a previous version, it would have worked, because when updating, the installer JUST removes the airport files from the old folder to the new -2020 package, but it would keep the FSDT_WorldOfJetways_Lib.bgl and the texture folder.
I verified it again now, by manually removing the Addon Manager\MSFS\fsdreamteam-gsx-world-of-jetways folder\scenery folder, and performed an update: all files are now restored correctly.