Dear Confuddled - The only pic I am aware of that Pence was cropped from is the swearing in of Gina Haspel event. That was what Pompeo posted today which only showed Trump, Pompeo and Haspel.
Since Pompeo had at least one other photo with Pence in it, perhaps the cropping was to focus attention on the ones still left in and not on Pence?
Did you click on my links to see the pics?
Petey