iScreensaver version 6.8.2 includes more fixes for video playback when using the HUD (Head's Up Display) onscreen controls, improves the reliability of grabbing Thumbnail icons from video and GLB/GLTF files. It also includes small fixes in preparation for macOS Monterey and Windows 11 (both of which are in beta).
Error loading image on Mac
Some of the users whom I've distributed the screensaver to get a lank screen showing "Error loading item named 'Noise 2560x1600.mp4' from id=0E021C6643@1x.mp4"
I have verified that the movie (Noise 2560x1600.mp4) is in the correct location with proper permissions, but the error persists. Only a handful of users get the error, and it does not seem to be OS specific (10.14 and 10.15).