I have an Ubercart site that relies heavily on attribute options. After updating Drupal core i'm having some problems getting the display price to update for anonymous users. Authenticated users work fine. 7.26 works fine.
If I am an anonymous user the first attribute option I select will not update the price, the ajax throbber goes like normal, but the display price remains unchanged. Add it to cart, price is correct. Select another option from a separate attribute on the same product and both attributes start calculating properly.
I was digging through what changed in the last few releases and thought the problem might be related to this: