Finder Icon Image Previews Stopped Working

[Jaw3000]

I'm on Monterey 12.3.1, and the Finder icon previews stopped updating (for images, etc.) and are now just showing generic 'Preview' icons rather than the image files or content. Preview is the file type default. It was working fine, and then it just stopped in every folder. Restarts and deleting Finder prefs don't help. Any suggestions?

 

[jamietshaw]

This is answered on https://forums.macrumors.com/threads/thumbnails-not-showing-on-mac-preview.2323137/ (scroll down a bit – look for com.apple.quicklook.ThumbnailsAgent). Warning: there’s a screenshot on that thread that might hurt your eyes!

 

[HDFan]

scroll down a bit – look for com.apple.quicklook.ThumbnailsAgent

Post #6.

 

[Jaw3000]

Thanks! Force quitting Thumbnails Agent worked. It's odd that this persisted through a restart though, as that should have restarted Thumbnails Agent too.

 

[fontcl]

Thanks! Force quitting Thumbnails Agent worked. It's odd that this persisted through a restart though, as that should have restarted Thumbnails Agent too.

Did you find a definitive solution for this?