I am also having this problem. No difference when I’m not in Admin mode. Category images were fine a couple days ago, now they’re gone.
http://www.waterbug.com/wordpress/product-category/calhoun-andrew/
This page should have an artist portrait on it. I have tried reloading the image, but no difference.
I’ve deactivated everything else except woocommerce and mailpoet. Still NO effect on my homepage.
I am not running the WooThemes Helper plugin, and I can’t get Homepage Control to do anything at all to my home page.