macOS Sierra 10.12.6 Screensavers, any 4K options

Updating Aerial won't work on it's own. Within the [code]{https://github.com/JohnCoates/Aerial} it downloads the actual 4k video from Apple's [https://sylvan.apple.com/Aerials/2x/entries.json]{https://sylvan.apple.com/Aerials/2x/entries.json}, which stores the files as HEVC.

"id" : "25DC0FF3-4499-4349-A3E6-DAEEB266712E", "url-1080-SDR" : "https://sylvan.apple.com/Aerials/2x/Videos/DB_D011_C009_2K_SDR_HEVC.mov", "url-4K-SDR" : "https://sylvan.apple.com/Aerials/2x/Videos/DB_D011_C009_4K_SDR_HEVC.mov", "accessibilityLabel" : "Dubai",

Pre-10.13.x, macOS has no way to natively decode HEVC, so what you end up with is a black screen when the wallpaper is active.

/r/MacOS Thread