I am also having this same issue. I resized all of my images to be 150×150 and edited the settings to match. I have exactly 13 images and edited the settings to match. I placed the shortcode in the page I wanted it to show but have not added anything to my theme php. Please advise as it is making my homepage have a very large and tall whitespace (not 150 pixels tall)
https://shoppingguide.wpengine.com
