Instant remove cargo does unload the cargo for 0.1 unity. Ok.
It does not stop the truck from going back to the MCT. Expected: Truck stops immediately until it gets new job. It's annoying to redirect them manually to avoid longer useless trips between excavator and MCT.
It does not clear the notification "Pickup has no compatible sorting plant for mixed cargo", until truck gets new job. Expected: Immediately clear that notification (to see if there is still other trucks needing attention) . The other notification, "MCT: No available place to dump products" does get cleared as expected.

Files not imported: TruckFull.save