I uploaded a WebP image to the Media folder in Umbraco 10. The image itself is available and can be used on the site , but the thumbnail does not appear in the backoffice. Has anyone else experienced this issue? Any ideas why the thumbnail might not be showing?
It should work by default within Umbraco v10 I tested a base install with the latest version 10.8.11 uploading a webp image and it appeared correctly for me.
Do you have anything custom that may be conflicting or getting any errors within inspect/logs?
If you want to quickly test against a base build you can use package script writer to quickly spin up a test site.