Hiya,
I do like the idea of keeping the belt loaders at the aircraft, but I can confirm this isn't working properly. As always I do 2 or 4 flights in a row, meaning 1, 2 or 3 turnarounds in total. After arrival and the engines have been shut down, I request deboarding, which performs as normal. After a few minutes while deboarding is still ongoing, I request refueling. Until recently the fuel truck would arrive when the baggage unloading was finished, but nowadays nothing happens. Even when all bags have been offloaded and all passengers have disembarked, there's still nothing happening. I tried to request boarding, but that doesn't happen either, as it's still awaiting refueling, which isn't happening as the baggage loader doesn't move out of the way... The only option left currently is to restart Couatl after deboarding has been completed, requesting stairs, requesting refueling and requesting boarding.
Can we have this fixed please so it works properly again?

EDIT: this is with MSFS 2020 and the PMDG NG3 737-800.