When a chain of projectiles are fired and they expire after their 60 second period, the damage will be applied to the target unit even if the attacks never reach the target unit. The first attack damage isn't applied, but the remaining attacks are applied.
If you have an item ability like orb of frost (the one that's put on to the orb of frost orbs thing) and you put it on an artillery unit, then when that artillery is ordered to attack ground, warcraft 3 will instantly crash. I have to use this ability and frost breath on all units for some damage stuff (telling between whether attacks came from physical or spell damage), so this bug is really : O.
I can fix bug #1 with an attack indexing thing I'm working on (prevent damage if the attack is already expired), but bug #2 is all you guys.
I'd appreciate it if bug #2 was fixed asap : ). Of course, it'd be cool if bug #1 was fixed too : p.