Anybody else experience this issue:
Several K2 "Latest Items" menu items with Users as parameters. Joomla cache disabled, they all work fine - the menu link actually goes to the proper User's content page. Enable Joomla cache and the menu items don't work properly. Every menu item will point to the same user, for example.
I'm using K2 v 2.6.8, Joomla 3.3, PHP 5.4.