[8.42] Zeppelin Lightning

[horselance]

Zeppelin Lightning abilty (which hits 5 target) has such a strange behavior. When you cast it and enemy is not in range and running from you, then your tank begins to follow it. You expect to hit the enemy but suddenly your Zeppelin stops following (near range of ability). And when you look, ability cooldown begins, which means you should have hit the target, but there is no graphical effect or damage.
Is this about WC3 engine or about somthing in BT. What do you think?