Key event can't be fired in a AI character BP?

Development Character & Animation
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1

hi,
I use the third person character as a AI character, I want to use a key event in it’s BP, but the event can’t be fired?
I try to use “Enable Input” to enable it, when I run the game, get a log error:“EnableInput can only be specified on a Pawn for its Controller”

I tested it in third person character’s BP and AI Controller’s BP, it works.

Does the key event only work in somewhere?

Any ideals?

Thanks!