I tried changing the layout to the default layout and it still works for me. Have you tried in Chrome? As Soph said, it may be custom CSS as well. The only other thing I can think is that maybe an add on or ad blcoker for your browser may be blocking it as well.

Can you let me know which pets should show? Or at least a few? Just so that we have the most information when a programmer looks into this.

The ones that have already won will not show anymore. Have any of those won?

Thanks for the report , this has now been fixed. Can you please confirm?