No thumbnails in media gallery

  • I’m having an issue where all of my image thumbnails in the media gallery are just showing up as grey boxes. I’ve already tried every solution that I’m able to find online: deactivating plugins, checking file permissions, regenerate thumbnails, all with no results. This is on a brand new installation of WordPress. Any help would be greatly appreciated.

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  • Check Tools > Site Health to see if there is any abnormality.

    Thread Starter vincentlamm

    (@vincentlamm)

    Thank you for your response!

    I’m getting the following errors in Site Health:

    “The REST API encountered an error. The REST API is one way that WordPress and other applications communicate with the server. For example, the block editor screen relies on the REST API to display and save your posts and pages. When testing the REST API, an error was encountered: REST API Endpoint: https://cardealerfl-online.preview-domain.com/wp-json/v2/types/post?context=edit REST API Response: (http_request failed) cURL error 6: could not resolve host: cardealerfl-online.preview-domain.com“

    “Your site could not complete a loopback request. Loopback requests are used to run scheduled events, and are also used by the built-in editors for themes and plugins to verify code stability. The loopback request to your site failed. This means features relying on them are not currently working as expected. Error: cURL error 6: could not resolve host: cardealerfl-online.preview-domain.com (http_request_failed)“

    How can I fix these? And could they be related to my original issue with my image thumbnails?

    View post on imgur.com

    Am unsure if this has to do with the image display, but right it is not either. You should contact your hoster who should solve this.

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