Save: https://docs.google.com/file/d/0B-zFSg4YJbUMeG9rMG1tdS0tVkk/edit?usp=sharing
Assuming the same thing happens here with another machine that happens on mine, when you click the 'turn' button the hourglass will appear, but the turn will never end. You can still perform additional actions like queuing builds, and can also bring up the menu and quit, but you can't get to the next turn.
I think this may be some sort of pathing issue. I'd noticed before that if a unit (usually an elemental or demon, but this may be a coincidence) tries to move on the Strategic map past another faction's Outpost, they just stop next to it and the turn won't end until you manually guide them around it or tell them to stop moving. I assume in this case this has happened with a unit controlled by an AI player.
Alas. Magnar were my last faction for the full house. Hopefully this will be fixed in 1.3.