When i enable "Simulate Physics" on my character, AI controls cease to work!

Without simulating physics, AI moves Muffins. But when i turn on physics, muffins stop moving. Why is this happening?

I want to add shooting weapons that will throw the enemy back.

Sorry for my English.

Tutorial project MuffinWarComplete.zip

I got a similar issue, it took me the day to find the issue

In my Behavior tree when one of my “Branch” was “false” i was doing nothing, but in task you MUST always add the node “Finish Execute” otherwise it will just stay stuck.