I’ve been monitoring the forum for a couple of days to see if anyone else reported this issue before posting about it myself as I appreciate that the devs have a lot on their hands at the moment.
Do you run GSX concurrently with AIG Traffic Manager, by chance? From what I’ve gathered so far the issue might be linked to the interaction between AIG traffic manager and GSX, and by ‘interaction’ I mean both addons running at the same time. In the limited tests I’ve performed so far, either unlinking GSX and running AIG without GSX being active, or running GSX and not starting up AIG seems to prevent the issue from occurring.
In all cases where it does occur, my experience is the same as the poster’s above, i.e. on arrival at the destination airport, the entire airport addon scenery, including buildings, static objects, taxi, runway and apron textures are missing as if the entire scenery layer hasn’t been loaded. I also get the problem exiting back to the main menu, whereby exiting the session (pressing ‘Esc’ and choosing the option to go back to MSFS’s main menu) the sim will not progress beyond the exit screen and will just sit there until you end the session using Task Manager. Just to be clear: it does not freeze or CTD, the blue progress line continues to move right up to the end point, but the session does not return back to the main menu (I have left it running in background for up to half an hour).
Just to add some further context, should it prove useful: In my case the issue is most likely to happen (4 out of 5 sessions so far) if I start a flight at LEMD (Madrid airport, the LVFR version purchased from the marketplace) and fly to another addon airport in the same region (i.e. LPPT and LPPR, both also purchased and installed via the MS marketplace). I think it’s worth mentioning that LEMD is a large airport with scenery that covers a large area, resulting in a significant (around 10 fps) performance hit on my system, so maybe there’s a connection there.
Interestingly enough, flying the other way and arriving at LEMD I have only had this happen on 1 of around 6 flights, in which case on that particular occasion I noticed that the AIG traffic didn’t visibly appear at the departing airport (as some people have mentioned in other threads), but the AI were still being seen by both the TCAS system in the Fenix A320 and the ATC addon I use, which simulated AI reporting in to various centres as the flight progressed (something that is not present when AIG is inactive).
In all instances, everything else preceding the arrival happens as expected. Both GSX ground traffic and AIG AI traffic are visible at departure (except in the single example mentioned above) and there is nothing visibly strange about the flight either. As mentioned, I fly the Fenix A320 and there are no apparent graphical glitches or systems anomalies that I notice. No stutters, performance glitches, or anything else that would make me suspect something is not as it should be.
Let me end with a warning of biblical proportions (is there any other kind when it comes to MSFS):
Hear ye, for it is written in the holy scriptures of FSElite that a saviour is about to be born. It’s name shall be: “FS Traffic”. Fear ye, lest any man defy the Holy Trinity that is GSX, FS Traffic and Pro-ATC - For the Four Sim Pilots of the MSFS apocalypse shall descend upon thee.
Don’t say I didn’t warn you :'(