Probably some setting you chose. When I first booted up Android 5, it asked me w...

Mikeb85 on Nov 20, 2014 | parent | context | favorite | on: Stop Changing UIs for No Good Reason

Probably some setting you chose. When I first booted up Android 5, it asked me whether or not to display notifications on the lock page (I chose no). It could be that you chose yes and your app (BubbleuPNP) keeps pushing that video to your lock screen...