Blueprint Twin Stick Shooter Enemy Rotation

Hey,

I try to learn how to use blueprints in UE 4. So I look at the video series for the Twin Stick Shooter. In chapter 08 an enemy is created to track the player. Thats working fine, but the enemy’s rotation isn’t smooth. For a better unterstanding what I mean, I make a short video. See below.

Video

Has someone an idea what is wrong?