As explained many times on the forum, when jetways disappear, is NEVER a problem of the scenery itself, and ALWAYS a problem caused by ANOTHER scenery. The ONLY thing in FSX that can exclude a jetway, is another AFCAD in conflict.
- Be sure you have KLAX on top of the Scenery Library, which is where the installer automatically place it by default. If you move the are manually, you increase the risk of scenery conflicts.
- Be sure you don't have another AFCAD in conflict, like one coming with AI Traffic products, they must be removed. Use the free FSX Airport Scanner utility to search for AFCAD duplicates and remove them.