How come after I updated my final cut software, I can't find any of my timeline history? I used to be able to click a button on the bottom left of my timeline and a window would open on the left showing all of my timeline history and now I can't do that. I have lost all the previous timelines from past projects I was working on and I can't figure out how to find them. This is crucial for my work and if you have any information that would help it would be greatly appreciated. Thanks.