Wordpress Galleries display in 1 Column only after 3.5.1 update

I recently updated to wordpress 3.5.1. I have an eCommerce site that i was displaying product variations in columns of 3 using shortcode [gallery]. I have over 150 products that almost all had this layout.

After upgrading, the columns only display in 1 column regardless of if i change it to 3 or even 9 columns.

The update went thru and changed all the layouts of all the galleries on my site.

Could someone provide me with a solution?