Playing as TEC Loyalist I got the chance to build a titan. However when it is around 80% constructed, it freezes and does not spawn/build etc... ***The game keeps working*** Titan just does not spawn. Not much to say other than that. I have the saved file so you can download it and look for yourself. If that helps....?
http://www.sendspace.com/file/5vlmn8
So far I have not encountered any other problems.