Been building and playing my course for a couple months now without a problem, but today my in game load stops at 50%. I've had no problem building the course in course forge and haven't had any errors recently requiring debugging. I vaguely remember a couple people mentioning a similar problem in the forums some time back but haven't been able to find any reference to it.
If anybody has any ideas what might be causing this and any ideas of what to do I sure would like to hear about it.