so I deleted that one the from the addon manager folder
That's our own .INI file, and you should not remove it, because if you do, it will do exactly that: removing all jetways.
The one you must remove it is the one you made yourself (doing any customization before we released the latest update with SODE jetways), under %APPDATA%\Virtuali\GSX.
And, you must be sure you use the FSDT AFCAD. If you made one yourself, it must be named the same as the FSDT AFCAD, but then you must be sure *every* gate matches, and we changed (updated to current situation) many of them in the last update.