I am following along with Texturing a Head With Projection Painting as seen in this Youtube video: https://www.youtube.com/watch?v=sZDMFkj8GqA. Everything goes correctly through unwrapping the UV's and putting the UV test grid on the model. When I try to follow along and Projection Paint I get the image shown below, that comes along with a missing data message. I don't see the Test Grid on the head & I don't know how to step back and rework the grid or add the Missing Texture that is referred to. I think it may be time to start over with this exercise, but I don't know where I went wrong. Any ideas would be helpful.