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Thumbnails are missing

You see: Shots in the shot list with no picture, or reel clips in a flat color. Or, in Thumbnail Cache, that shots in this shot selects file have no thumbnail, or "No thumbnails could be rebuilt. The source files may be missing or unreadable."

Why: Thumbnails are kept on each computer, not in the shot selects file, so a file opened somewhere new, or after the cache is cleared, starts without them. ShotWork rebuilds them when the shot selects open, which needs the videos and ffmpeg. A reel tab that was already open keeps showing what it had.

Fix:

  1. Relink any video that has moved; a thumbnail cannot be made without it. See Source not found when opening shot selects.
  2. On the shot selects tab, choose Settings › Thumbnail Cache…, then Regenerate Missing, or Regenerate Missing (Whole Library) for every shot selects file at once.
  3. On a reel, close its tab and open the reel again.

If that didn't work: "No thumbnails could be rebuilt" means the videos could not be read; open one of them to see why. See Thumbnail cache.