You posted a cut screenshot of the Disabled list, when the most important thing to check was if the airport was still in the Enabled list instead, which is usually easier to check by typing its ICAO, so the Enabled list fill filter out names that don't match, so you won't have to scroll the whole list to check if it's there.
If the scenery is not in the Enabled list, but you still see the jetways, the only possible reason is you have two copies of GSX packages installed, one in the Addon Manager, and another one in the Community folder that is not a Symbolic link, but a real folder that can be there only because you manually copied it there, so the Installer and the updater is working on the Addon Manager copy, but the simulator will see the "real" copy in the Community folder.
Be sure the two GSX Packages in the Community folder are links, not real folders, which is the normal situation. If they are links, they have a small arrow in the folder icon, which is ok. If there's no arrow, so it's a real folder, REMOVE IT, restart the Installer and press RELINK, which will create the link from the Addon Manager to the Community folder.