When I open a project, 2 windows will appear. One window will be blank, and the other will have the regular Unity UI. At times, I may be working in one and it will switch to the other. It's pretty frustrating, but it started happening recently. It didnt occur in a21, but once I moved to b7, it started to occur on both. I'm pretty sure it's my project bc the kart tutorial doesn't have the same issues.