Thank you Umberto. I will try that tomorrow, using only pushback, VGDS and my AI traffic as usual (maximum) and see what the results are. I have been using MSFS for the past month without GSX, but maximum AI traffic with AIG and NEVER had once a vanished destination airport, using heavy airports like your excellent KORD, FT KBOS, ZSPD, ZBAA, EDDF, LFPG, KJFK, KLAX, and many others, so I'm nowhere near the limit (I think) and hope your clarification and my restricting to these only two services should do the trick.