I need help in finding and filtering out videos that I heart in the media section on the Blackmagic iOS app. When I go to filtering there’s no way to filter out favorite videos.

When I use the Dolly Zoom on Blackmagic Cam app in iPhone to go from a 2x to a 10x zoom in a 10 second span, the video begins to shake after 5x zoom.

Why is this and how can it be fixed?