cloud of fog targets isaneaty

I want to make an item that creates a cloud of fog in the target AOE (non channeling) and disables all units attacks (melee and ranged). So I thougth, I could easiely(?) use a dummy-unit and order the unit to "cloudoffog" (852473) at the target point the Hero used item. But it seems to appear that vs CPU players it works, but when the CPU uses (via a custom AI), it does not work, my hero can still attack. Btw. the targets of the cloud of fog spell are the following: "enemies,mechanical,organic,invulnerable,vulnerable"

Can anyone explain that dumb bug(maybe it's my fault)? Thx.

Try adding neutral as a target.

Thx, works.

EDIT:
Targets are now: enemies,neutral,invulnerable,vulnerable