None of this could possibly be caused by our latest update and, in fact, I don't see how the airport could work before, since Premium airports are encrypted, so GSX couldn't possibly read those, not before and not now, and it won't be able to read them unless we'll update it to use the new Navdata API that will allow to get data directly from the sim, without having to open the airport .BGL file.
Maybe you thought it worked before, because at SOME gates, the default airport data might have been similar enough to allow GSX to identify the jetway, now you tried other gates where it couldn't, so you think it was caused by our update, but it surely isn't, encrypted airports simply can't be read now, and if they can't be read, GSX will use data from the default airport underneath, and this might work in some cases, but not everywhere, and without the data, GSX can't find the jetway and if it can't find the jetway, it won't show passengers.