K2 images not showing and JoomlaWorks states it is a T3 bug

K2 images are not showing up on my site unless I add code to the custom.css file. I asked for help with this at the JoomlaWorks forum and they mentioned that this is a T3 bug so I wanted to make sure you are aware of it.

This is where I read about the issue:
http://www.joomlaworks.net/forum/k2-en/37686-solved-image-not-showing-in-item#133862

The workaround to get the image to display is to add the following code to the custom.css file:

.modal {
display: inline;
position: static;
}

However, this ALMOST works for me. What happens now is that the K2 image ends up displaying on top of the sticky navigation instead of behind it.

Here is a page on my site where the K2 Item Image is loading on top of the navigation after I added the extra code:

http://gmf.cloudaccess.net/surfaces/showers/glass-tile-showers/item/27-matching-glass-tile-showers

Of course I would like to remove the code from my custom.css file and have my K2 images display.

Thank you, Sean Carney