Hello everybody,
I am having the same issue, I was using fsx and I had no this issue, I am using now prepar3d v4.4 and I am experiencing the same issue than you. Someone has solved it? I am very sad because I can`t use GSX2.
I receive the message: gsx there are no passenger stairs. You will not see passengers visually.
I will appreciate some help because I want to solve it.
In the 3D Editor Mode, when I am in the aircraft I dont see the lines, the blue, the red and the green line to set the GSX2. I hope that you can help me soon.
Regards
Hernando