Bug during mining. Not a crash, just wasting fuel driving empty trucks around.

If I assign more than 1 truck to an MZ miner (any of them) all trucks will travel to the miner. One gets filled and All trucks then drive back to the mining control tower and the one truck that has a load dumps its load. Then the miner waits for another truck and all trucks then drive to that miner and one gets filled and all trucks return to the tower. This wastes a lot of fuel driving empty trucks back and forth. Any chance you can fix this?