Thank you for your quick answer. First of all, I installed today GSX with the full installer from fsdt website. So, I guess the vehicules in there are up to date.
Secondly, I didn't configure GSX at all - after GSX installation, I launched FSX then the PMDG B777-300ER in dark and cold mode from stand C2 (Aerosoft LFPG Charles de Gaulle) that's it.
When calling the catering I noticed the conflict with the aircraft with or without door open.
Does it make things easier for understanding this issue? Please, feel free to ask for additional infos if required.
Regards,
Papangue