It was then that I noticed the middle baggage cart missing. Maybe has something to do with the other thread about sections missing when requesting a gate from the air?
That bug, which we fixed in the yesterday's update, cannot have anything to do with this. You would miss the baggage loader, which is a vehicle related to your door's height (which were calculated incorrectly when in flight, because of the bug that we fixed), but the baggage cart is not affected by this and, more importantly, the various carts are created all together, it's simply cannot happen that a single one would be missing, especially in the middle.
Your crash log seems to indicate a problem with Simconnect, possibly caused by interference from another addon.
I think I would really need to have a look at your system with Teamviewer, since there's no way we can replicate this. If this is ok for you, PM or email me to arrange that.