Hi Umberto
It was gate 510 (JetBlue pier). I was set up in an AXE A320 using FS2Crew, with electrical power attached but APU off. I used the editor to customise the properties for the gate, i.e. set pushback to both, baggage loaders to conveyor belts and increased the left & right radii to 23 and 24 meters. I also selected the parking has jetway, disable staircases and passenger bus.
I then called for refuelling (No catering for JetBlue), then about 8 minutes later I called for boarding, which completed normally and the conveyor belt trucks moved off. Once FS2Crew closed my doors and removed the jetway I called for the pushback. Nothing happened except the options window disappeared. I called for pushback again, still nothing. The (JetBlue) tug was there but it didn't move. It was then that I paused P3D and copied and saved the log and err files. I resumed my flight and used the reset option, called for pushback and the pushback proceeded normally. Let me know if you need any more data.
Thanks for heads up on the cfg editor. I will activate the sceneries after this flight.
Andrew