AI Bot wont respond to blueprints

I made the AI Bot follow me and then explode once it hits me, it worked on the default world but when I moved him to a different world he just won’t move or explode. I tried to move him back to the default world and the same problem still seems to happen.
A video of the problem: Unreal Engine 4 Bug - YouTube
A picture of the blueprint: Imgur: The magic of the Internet

Thanks for everyone who will help me!

This might be a silly question, but does your new world have a “Nav Mesh Bounds Volume”? You need it for the AI to move.

Wow, thanks a lot for this! I completely forgot about that!

Thank you!!!