Someone else had the same problem, make sure to have short distance road between pickup of baggage and drop-off at the carousel. Tip; assign vehicles to stands, so baggage can offload ASAP without first calling a vehicle to the stand.
@Olof - btw, I found out that all kind of vehicles have no sell value, or a sell value of ZERO.
Why is the demolition tool for deleting terminal space a 1 * 1 block, and not a 5 * 5 block?