Hey everyone, 

Brand to new iClone and I'm extremely excited about it. Today I was going through a beginner tutorial on YouTube, specifically this one:

https://www.youtube.com/watch?v=21j7xii-sHs

It went well and was very informative, but two things happened right at the end: first, everything got laggy and the blue "loading" circle kept popping up in the project. It didn't pop up in other projects when I loaded them. Second, the Sky Tool stopped working. I would open it, either in this project or a new one, and when I set the time of day to "night" and turned up the star density, the stars wouldn't appear and the sky wouldn't really get dark. 

Any suggestions for how to trouble shoot this greatly appreciated!