How to stop the third person character being controlled by the AI controller?

I’m using a widget, spawned from a VR Pawn, simliar to the one in the following tutorial:
Unreal Engine - [VR] 3D Widget - YouTube with 3 buttons, to possess a pawn, first person character and third person character that are already placed in the level.

When I click to the possess the first person, it is controlled by it’s player controller, however with the Third Person Character, and pawn, the view is from the AI controller. I’ve made sure to destroy the VR pawn with widget and possess the new selected character. I’ve also copied the following ‘Get Player View Point’ from First Person Character to Third Person Character, but it is still controlled by an AI controller, and not viewed from Third person Character Camera.

Please help! Thanks in advance