When you optimize an image with ShortPixel Image Optimizer, you may receive the message “File Error. File could not be loaded with this ID ( Attachment ID XXX )”.<\/p>\n\n\n\n
This error message usually appears when there is an entry in the Media Library, but the file does not exist or is corrupted. A quick solution to this problem is to use a plugin like Enable Media Replace<\/a> to replace the missing images with new ones. ShortPixel should then automatically detect the new image and optimize it along with the thumbnails. If that doesn’t help, for a<\/strong>ll possible causes and troubleshooting methods, please read this article: <\/strong>Why some or all of the images cannot be optimized?<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":" When you optimize an image with ShortPixel Image Optimizer, you may receive the message “File Error. File could not be loaded with this ID ( Attachment ID XXX )”. This error message usually appears when there is an entry in the Media Library, but the file does not exist or is corrupted. A quick solution to this […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"doc_category":[37],"glossaries":[],"doc_tag":[],"class_list":["post-948","docs","type-docs","status-publish","hentry","doc_category-shortpixel-image-optimizer"],"blocksy_meta":[],"year_month":"2026-04","word_count":118,"total_views":"654","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"admin","author_nicename":"admin_mdli53m5","author_url":"https:\/\/kb.shortpixel.com\/author\/admin_mdli53m5\/"},"doc_category_info":[{"term_name":"ShortPixel Image Optimizer","term_url":"https:\/\/kb.shortpixel.com\/knowledge-base\/category\/shortpixel-image-optimizer\/"}],"doc_tag_info":[],"knowledge_base_info":[],"knowledge_base_slug":[],"_links":{"self":[{"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/docs\/948","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/comments?post=948"}],"version-history":[{"count":1,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/docs\/948\/revisions"}],"predecessor-version":[{"id":1375,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/docs\/948\/revisions\/1375"}],"wp:attachment":[{"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/media?parent=948"}],"wp:term":[{"taxonomy":"doc_category","embeddable":true,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/doc_category?post=948"},{"taxonomy":"glossaries","embeddable":true,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/glossaries?post=948"},{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/doc_tag?post=948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}