Matinee: Camera Group Losing Its Camera Group Functionality Upon Exiting Matinee Editor

I’ve created a 2nd camera group so I can cut to a second camera. Everything works fine when I preview the play in the matinee editor. However when I close the Matinee Editor, to test it doesn’t cut to the next camera, as if the matinee completed. When I open the Matinee Editor to check, the 2nd camera group has lost its classification as a camera group and the 2nd cut no longer works. Often times, it will crash Unreal at this point. Is there something I am doing wrong? Or could this be a bug? I am using 4.9.1. Thank you.