If you miss a livestream in the Knit Camp app, there are several ways to watch it later. 
First, use the magnifying glass (top right icon on any screen in the app) and search the hashtag #livestream to see all the latest livestream videos.

You can also visit the Olive Knits profile to see all of Marie's posts, including her livestreams. (Be sure you are following the Olive Knits profile, as well, so you will always see her posts and videos in your feed.)

Not sure where the Olive Knits profile is? Click on the Activity Feed, then the magnifying glass in the upper right-hand corner. Enter "Olive Knits" in the search bar. Click on the Olive Knits member listing and you will be taken to the Olive Knits profile page.