Many thanks. I never recall customizing anything at KLAX, but sure enough I did find an APPDATA ini from 2015, and after removing it, the jetways are present and working.
I do have one additional question about KLAX. All the gates are labeled "Ramp GA". At all my other airports, the gates are labeled as Gate heavy, Gate Medium etc, to allow choosing an appropriate parking space size for the airplane. Why does FSDT KLAX not have specific labels?
Thanks,
Greg