Darius W Bug.

When Darius activates w , cancelling his aa as it swings on at low hp minion, changing to the w attack animation at a minion right as it dies ( from other minions ) can cause minions to become untargetable by right click. Using attack move will still work. Recalling or dieing seems to reset this bug.

It is hard to recreate but I've had this bug popup a couple of times in the last week.

Steps on how it happened:

1. Darius begins aa attack
2. Activates w and right clicks again reseting the animation mid AA
3. Low hp minion dies before w animation finishes.
4. All Minions sometimes become untargetable to right click ( even had dragon untargetable ).
5. Attack move still works.
6. Dieing or recalling seems to reset it.