Ai move to object #2

Development Programming & Scripting Blueprint
1

I want to create a defense game where you have to guard an asset. For example minions are comeing to destroy my cube.
I have everything dont for the most part. i made enemy spawner. Made Ai to chase player or destroy target. Ai is chaseing me and attacking but it is not trying to kill my asset that i am guarding, that is cube a static mesh. in Ai graph i made a variable, changed type for cube reference and made Ai move to blueprint, but nothing. Ai moves to middle of room and stands.

Can some one please help me with this!

2

So everything has come to this. Spawned enemies dont have target. But non spawning targets do because i have manually made target object like in the image.
How can i make spawned ai automatically know the object?

3

You need beginner tutorials