This is no big deal but, a member of my legion had dealt 1271 damage to a lazuli factory complex, along with 2 other people hitting it for more. There was 1333 health left. I saw it and seeing that I could still get a drop, I wiped it out. The member who did 1271 got the drop instead.

Coupled with the first hit no reward glitch, I would say that the last hit is not being counted in the drop selection. This means that it is to do with the order of the coding and the fix should only require shuffling around a few lines.

Just giving some more info on the glitch than anything...

Yes, you need to have attacked prior to the disabling attack in order to get a reward.