Well I tried at default, freeware and payware airports but I don't have any FSDT airports also I tried on the runway, taxiway and the apron but the first time it happened was when I had finished pushing back from a gate and I got the good day message from gsx while the pushback truck was still infront of me and going back to gate I requested a follow me to the runway(something I noticed that was new and I wanted to test).