I can confirm that unless you restart the Coutl... the Simbrief data for the 2nd flight is not imported (not once has this happened and I have done many flights already). It would be good if there was a "Import Simbrief" button there so we could use that instead of restarting the system.
What I was trying to say is that, since Simbrief data is reloaded when a gate is first set and the airplane is found there parked, that is the time you see traffic cones forming around you, it's even before GSX vehicles have been created and an operator has been chosen so, basically, it's not any different than just restarting Couatl.
It's not as if we can just put a "Load simbrief" button. At minimum, it won't be always available, surely you can't reload Simbrief (possibly affecting the passenger number)
when passengers already started boarding. And of course, when a 3rd party airplane set the passenger number by itself, there must be a priority.
Currently, if the airplane sets the passenger number explicitly, Simbrief won't even be used, because it's supposed the airplane knows what to do, this means things must be done at a certain time, checking first if the airplane has set the number, and check Simbrief when it hasn't, meaning the best time to do that is...exactly where it is now, on Gate reset, before anything further decision that might affect the choice of vehicles (the bus type depends on the passenger number too ) hasn't been made yet, and that's why allowing to change it after service started is...the same as Restarting Couatl.