Hi, when I upload an image (800x800px), the image is uploaded (with a fatal error) but the thumbnail in media library is not shown. I can see the image if I click on the title, but if I want to edit it, I don’t have the resizing options. It says the data for the image is missing.
How can I fix it?
It sounds like a permissions or memory problem. Make sure your uploads folder is writable (permissions 777 including subdirectories) and try increasing in php.ini the memory_limit and max_request_size values.