Already posted here, however, it is gone....
ProximityTrigger will not fire any action >= leg 2 in BushTrips. No DialogActions, MissionFailures, ObjectActivations aso.
In Leg 1 in DevMode, you will see the areas in a green rectangle when outside of the area. Changing color to blue when flying in.
Leg2 or later, the area rectangles are white when outside, but turn blue when flying in but not action is fired.
In Saved-Mission SPB I can see, they are Activated, DefaultActivated but not latched.
Happens since SU5, every help is welcome.