Stuck on player x turn (plus workaround)

My current game kept getting stuck on player 8's turn. So I changed player 8 to human controlled to see what was up. It came to the point of a dreadnought attacking a planet and hitting it with a wormhole beam, which sent the planet outside the retreat circle (and you thought hitting a planet with a tractor beam was fun). So I changed the data files to remove planets from the list of targets for wormhole beams, tractor beams and repulsor beams. No more stuck processing.