Hi
I have the latest version of K2 running on Joomla 2.5.8

The problem is k2 items in one particular category don't load, clicking their link just reloads the homepage.

Example here:
www.gayuknews.com the latest item is linked top left. The link just reloads the page. Other items in other categories works just fine.
Link to article directly also doesn't work
www.gayuknews.com/item/6058-zoe-lyons-strolls-for-stonewall

The category the item is in "UK Regions" is set up the same as every other category as far as I can tell.

Any ideas?