How do I get the player to rotate or face an NPC?

Ok, so taking into consideration some advice, I revised it, removed the interp to simplify it for now, and now it looks like this. The intent was to have the player have the camera immediately look at the npc:

But still it doesn’t work. when I hit “E” to trigger the custom event, it moves the player slightly backwards (instead of rotating to look at NPC), as seen in this video. Now I’m even more confused:
v=_PWwRKVWw5A&feature=youtu.be

Also, note that the OnComponentOverlap node is just there for the sake of having something plugged into the object pin of the Cast To node, since the InputAction node doesn’t have the “other actor” pin. Otherwise I don’t know what to connect to the object pin of the Cast To node.