Some addons (visualization, screensavers) will be broken by the latest build. I've uploaded a new zip for visualization.shadertoy, I'll update screensaver.shadertoy as/when an update is available.
Texture Cache Maintenance Utility: Preload your texture cache for optimal UI performance. Remotely manage media libraries. Purge unused artwork to free up space. Find missing media. Configurable QA check to highlight metadata issues. Aid in diagnosis of library and cache related problems.