The dark gray jetway it's not part of the FSDT scenery. So, it's either part of the default, which simply shouldn't happen, because if FSDT KORD is on top of the Scenery Library, it will exclude the default. OR, it comes from another scenery that you forgot to have installed.
Do you have FlyTampa Midway ? If yes, can you check if the kord_tweak.bgl in its folder has been renamed as kord_tweak.fsdt ? If not, do it yourself or just delete it.