03-16-2020 10:25 AM
What version of Quik for desktop are you using?
Do you still remember the resolutions used on this videos?
Would you mind checking if the same happens when selecting photos alone?
03-18-2020 08:21 AM
Hello @xxxtc. Are you able to playback your media (in view mode) without getting a black screen?
Make sure your Mac is running on the latest version and ensure that the graphics driver is up to date. Also, see if you may be including files that use HEVC. Such files need specific system requirements in order to be viewable. See HEVC Explained for more information.