From your screenshot, it seems you are missing jetways and ground vehicles but, keep in mind they are supposed to be of lower detail and/or being entirely removed after a certain distance and/or certain altitude so, it's difficult from the screenshot to understand if they are missing because of the distance/altitude, or because there's a problem.
Do they reappear if you go closer ? If not, it's likely another scenery in conflict, since the only way to remove jetways is using an AFCAD from another scenery, either a leftover for a product you removed, or an AFCAD that comes with an AI Traffic Package.