Navigraph has finally managed to import a new flight plan directly into the sim without restarting the sim
So unfortunately I have a new problem
I flew from LOWW to EDDM and back again.
As I arrived in LOWW, no traffic (FSLTL even with a restart it doesn’t work anymore) and the jetways are not moving, but GSX thought it was working. (Also a restart does not work)
The next day I flew from Vienna to Cairo and back and unfortunately the same problem persists.
Either it is due to Gaya LOWW when you fly to the airport twice or it is a general problem.