Rule clarification: All attack vs invisible enemies

[amity21]

In my game, I had the poison cloud and Twin Dagger both does an "All enemy attack"

My question is does the attack/token also applies to invisible enemy?
Because if not, I need to open a ticket.

[capitaine-grappin]

No, an invisible enemy cannot be targeted with any action

It is precised in the FAQ

Q: Can an invisible enemy be targeted with an ALL effect?
A: No