Help with composure plug-in for real time video production

Hi im starting to learn how to use UE5 for real-time production for films and videos and I was following the tutorial by on how to set everything up and until the final step everything was working however the composition was just displaying a blank transparent image for some reason.

Screenshot 2021-08-23 174720

Screenshot 2021-08-23 174801
Screenshot 2021-08-23 174818

and all the problems occur after with the material that is supposed to blend the media clip and the cg element together, but I don’t know why it isn’t working