Blackbar at Compshots

I made a long composition shot. Suddently a the half media is filled with black stripes ! I cut the shot in half but then the single parts were halfly filled with these stripes :( when i scroll over them its just a blackscreen!

Do they effect  my video or is it just  bug ?


  • AxelWilkinson
    AxelWilkinson Staff Administrator, Imerge Beta Tester, HitFilm Beta Tester Posts: 5,249 Staff

    When you say "suddenly" these black bars appeared, can you clarify what tool you used immediately before this happened? Are the black stripes horizontal, vertical, or temporal? 

    What format is the video in, and what codec does it use? What effects are applied to the video, if any? Is the source video variable frame rate?