On my last flight I also had a slight variation: pax still on board after deboarding was completed.
According to your log, the problem was the jetway that didn't dock completely, so deboarding was only simulated, see this line:
"Jetway not close enough to any door. You won't see Passengers."
A possible reason for this is the jetway docking on L2 because of your position (something GSX can't control), but Fenix having removed it and specified L2 to be the rear passenger door instead. This made GSX assuming there's no L2 so, a jetway docked there won't be seen close to any door.
It's possible that Fenix removed L2 assuming that GSX could in some way affect where the jetway docks, but that's not how jetways works in MSFS, the jetway docks where it can, and the only thing that controls this are the [Exits] section in the airplane.cfg, if they wanted to prevent jetways to dock on L2, they should remove the exit from the aircraft.cfg and the GSX profile as well.
But of course, if from your parking position, docking on L1 wouldn't work, the jetway in that case would have been stay undocked, resulting in the exact same issue of Deboarding only simulated.
