Hi everyone,
I've been using GSX Pro for while now, but never used the forum before.
I always had a great experience and rare issues. After a small break from flight sim for some months and updating to a new PC, I'm also having this issue in MSFS 2020 (I also have 2024, but waiting for Sim update 4, before installing on this PC.
I have version 3.7.1 and jetways are only connected to buildings in standard airports, if I disable GSX Pro jetways all together (then it all works fine), otherwise, jetways only work as intended in addon airports I have. The standard ones, have jetways not connected to the buildings and give the error "You have bad jetway data". This happens in all default airports I tested, like for instance a random one, I assume it's not deluxe edition MMUN (since it looks like crap

, not that the Asobo deluxe ones, look much better).
I already tried to uninstall Navigraph, but same result.
As suggested previously by the dev, I'll start the painful process of clearing my community folder completely (leaving only GSX Pro). If it then works as intended, I will add all my add-ons 1 by 1 until I find the culprit, however, if it doesn't work with a clean community folder, it'd be really nice to understand whats going on with so many people and fix this.
I remember back at the start of 2025, all was working fine. I figure some Asobo update messed this up.
By the way on the config of the FSDT installer I have the option "SU 12 Navdata API enabled" = yes. Should this be enabled, since we're already past SU12?
If someone found a solution, please do share. I'll also share my findings (It'll take some weeks...)
In the meantime I have GSX jetways disabled at all airports.
Cheers
