Today while I was playing, my fuel depots ran out of fuel (both types), as has happened before, but the difference this time (besides new version) is that the fuel trailers that have to fill the depots start driving around the airport without ever entering the fuel depot to unload the fuel. After a while driving around they leave the map and new trucks come in, just to do the same thing.
I’m on the newest version on Steam. I’ll post some pictures here, tho there’s nothing much to see besides trucks driving around
This one seemed like it was entering the depot, but he was just turning around
As you can see in this one some trucks like the bottom left one drive pretty far from the depots and then turn around.