AI Character don't avoid Spawned Dynamic Actors

Hello everyone, I’m struggling for days trying to figure out how to make my AI avoid fances (static meshes) that my player character spawns, just like in a tower defense game. The AI character have a simple move to location to a target, and what I’m trying to do is building (spawning) fences that change its navigation by just avoiding those. But I can’t get it to work. I already tried changing the Runtime to Dynamic, all the objects to Dynamic and so on.

Can you guys help me?

Thank you!