Hey Joseph Just letting you know this issue should now be fixed. I don't know why we never had any previous reports of this, but shouldn't be any problems now with Uppercase characters. :) Cheers

Updated version, fixes a fatal error under some circumstances.

Hi Luke, Try this version (though Predrags should work too in admin pages only.) i've added a check to see if is_plugin_active() is defined or not instead. Hopefully this should fix it once and for all, we will be including this feature in a not so distant Smush Update too, so once that's released you should remove this mu-plugin. Cheers

Hi Luke, That's strange, can you attach the error log here at all? I can't replicate the error on my own sites at all.

Hi Luke Miller I've rewritten the mu-plugin a little bit, which should hopefully prevent this issue now in grid view, tho I couldn't replicate your issue to begin with. Please find attached zip containing the updated mu-plugin. Hope this helps

Attaching screenshot.

Hi Bruno Apologies for this, 3rd time is a charm so they say. (You can blame me for Dimitris posts above, i removed his attachments as there was a bug in them) Please use this attached version, which should work perfectly fine now. :) Directions: unzip the attached zip. Then upload the enclosed file: wpmudev-img-skip-smush.php to the following location: /wp-content/mu-plugins/ Make sure automatically smush images on upload is disabled in the smush settings (we can't set the option until after the image has been uploaded and attached) Then when you edit the image file you should see a checkbox option on images to skip smushing if checked. Cheers