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Does anyone know why `com.apple.quicklook.ThumbnailsAgent` would be constantly consuming CPU and perhaps how I can fix it? It's not a huge amount but it just seems to be running needlessly, like it's stuck in a loop and it also brings `diskarbitrationd` along for the ride. It's been running since I upgraded to Big Sur (a day after release). I've tried clearing the quick look cache. I even tried disabling it but that doesn't seem to work on Big Sur.