We you keep saying it was "different" in previous versions ? We haven't changed anything in the Fuel handling! Of course, when I replied to you in my previous message, to confirm that multiple trips are still working fine as they always did, I tried with the default B747, and of course it worked just fine, with 100% realistic timings.
If you are having an issue only with PMDG planes, I think it's just an issue of not understanding how differently the refuel works, when a plane using a non-standard fuel system is used and in case of the PMDG 744, if it has its own progressive refueling simulation. It also depends how you use the PMDG turn-around features too and if you enabled or not the "always refuel progressively option in GSX".
This is explained at Page 17 of the GSX manual, with an example of usage with the PMDG777, which is a plane with a custom fuel system and a progressive refueling simulation. You must follow that exact procedure, in order to have the GSX refueling work with it.
But the main difference is:
- If the airplane use a default fuel system, which GSX identifies by the option "Show the fuel and cargo dialog during refueling" in the airplane configuration, it will be refueled BY GSX, which will change the actual fuel quantity in the plane, progressively.
- If the airplane has its own custom fuel system ( the "Show the fuel and cargo dialog during refueling" airplane option is Disabled ), the refueling will be controlled ENTIRELY by the plane itself, GSX won't touch the fuel quantities, it will only *detect* a constant increase in the fuel quantity, as an indication the refueling is still going on, so it must continue to have trucks arriving/going away, until the flow stops. So, GSX is being controlled BY the airplane in this case.
And, about not being able to open the PMDG 744 Cargo Doors, you surely can open them manually from the "FS Actions" -> "Doors" menu in the FMC. However, they might not work, if you haven't configured your airplane system correctly. See here:
https://www.avsim.com/forums/topic/503350-cargo-doors-wont-open/The manual notes that you need to have one of the GENs set to AVAIL (not in use) in order for the doors to open. So, if your APU is on, use APU L for power, and leave APU R at AVAIL. Same goes for the GPU.