Title: Optimise missing thumbnails, not working
Last modified: February 17, 2021

---

# Optimise missing thumbnails, not working

 *  Resolved [nickk40](https://wordpress.org/support/users/nickk40/)
 * (@nickk40)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/optimise-missing-thumbnails-not-working/)
 * For some images it seems it hasn’t optimized all images yet, since it states:“
   Optimise # missing thumbnails”. Then if I click on this link to optimize these
   missing thumbnails, the page just refreshes and that’s it. There’s no feedback
   message, no error in the console, but the missing thumbnails line remains. Any
   idea what might be happening here?

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Author [WP Media](https://wordpress.org/support/users/wp_media/)
 * (@wp_media)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/optimise-missing-thumbnails-not-working/#post-14065382)
 * Hey [@nickk40](https://wordpress.org/support/users/nickk40/),
 * This is Joseph from Imagify, and I’ll gladly assist you here!
 * I’m really sorry you’re having issues with this!
 * It’s difficult to say for sure what might be happening from the outside.
 * Could you please try a couple of things on one or two of these images this is
   happening to?
 * First find them in the Media Library (list view) and try restoring them to original
   and then re-optimizing them to see if that resolves the issue.
 * If that doesn’t work, try downloading the original backup, re-uploading the image
   to your Media Library, and then optimize to see if that clears the issue up. 
   If it does, you may need to try this for all the images with this issue.
 * If neither of those work, you can also try using the Regenerate Thumbs plugin
   to regenerate all your thumbnail sizes and then see if the issue is resolved 
   after the image is optimized once again. Here’s the link to that plugin:
 * [https://wordpress.org/plugins/regenerate-thumbnails/](https://wordpress.org/plugins/regenerate-thumbnails/)
 * Once activated, a link to “Regenerate Thumbnails will appear when you hover over
   the names of each of your images in your Media Library.
 * Make sure you make a full backup of your site and database before trying this
   plugin, just in case.
 * Please let me know how this works for you, and I am happy to be of further assistance
   if needed!
 * Best regards,
    Joseph
 *  Thread Starter [nickk40](https://wordpress.org/support/users/nickk40/)
 * (@nickk40)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/optimise-missing-thumbnails-not-working/#post-14067753)
 * Thanks Joseph, the “Restore to original” and then again select “Optimize” already
   does the trick!
 * Perhaps I can ask a short follow-up question:
 * For some images it shows up like this: [https://ibb.co/34dQNms](https://ibb.co/34dQNms)
   
   While for other images like this: [https://ibb.co/z5c3mCg](https://ibb.co/z5c3mCg)
 * What is the difference? Because for both it seems to have successfully completed
   the Optimization process.
 *  Plugin Author [WP Media](https://wordpress.org/support/users/wp_media/)
 * (@wp_media)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/optimise-missing-thumbnails-not-working/#post-14069768)
 * Hey [@nickk40](https://wordpress.org/support/users/nickk40/),
 * Glad to hear that worked for you!
 * Regarding your follow-up question, the WELL DONE messages mean that Imagify has
   analyzed your images and decided that at your currently set compression level(
   Normal, Aggressive, or Ultra) no optimization was needed.
 * You can try clicking the “Re-optimize to Ultra” link to see if it might compress
   the image some at that level. You can then view the image to see if the image
   quality is okay. If it is, you can leave the image, but if it affected the quality
   too much, you could always Re-optimize it back to the Aggressive level. It’s 
   also possible compression may not be needed even at the Ultra level, so it may
   still display the WELL DONE message after you try that too.
 * Please let me know if you have any further questions on this and I’ll be more
   than happy to assist!
 * Best regards,
    Joseph
 *  Thread Starter [nickk40](https://wordpress.org/support/users/nickk40/)
 * (@nickk40)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/optimise-missing-thumbnails-not-working/#post-14071321)
 * Thanks for helping me understand!

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Optimise missing thumbnails, not working’ is closed to new replies.

 * ![](https://ps.w.org/imagify/assets/icon-256x256.gif?rev=3452959)
 * [Imagify: Optimize Images for Top Speed (Compress & Convert to WebP/AVIF)](https://wordpress.org/plugins/imagify/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/imagify/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/imagify/)
 * [Active Topics](https://wordpress.org/support/plugin/imagify/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/imagify/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/imagify/reviews/)

 * 4 replies
 * 2 participants
 * Last reply from: [nickk40](https://wordpress.org/support/users/nickk40/)
 * Last activity: [5 years, 3 months ago](https://wordpress.org/support/topic/optimise-missing-thumbnails-not-working/#post-14071321)
 * Status: resolved