Just as the title says.
This is quite different from the previous issue where thumbnails didn't load, this one happens when a thumbnail should appear more than once but only appears once (e.g. in my user comments page if I've posted more than one comment on a post, or my profile page if I've favorited one of my recent uploads, etch)
I favorited all my recent uploads to provide an example of this, please check my profile page in order to confirm this.
If you don't see it, here is for a screenshot so you can see what I'm seeing (the exact same thumbnails that appear on Recent Uploads should appear on Recent Favorites)
Updated