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Error: "This diagram can't be loaded here"

Symptom​

A Mermaid Diagram macro or the Jira panel shows "This diagram can't be loaded here. Diagrams are stored with a page or work item, so they don't load in templates or content that no longer exists."

The macro is in a template​

Cause: Confluence keeps each diagram as an attachment of its page. A space or page template isn't a page, so the diagram has nowhere to live.

Solution: Remove the macro from the template. Create the page from the template first, then add the macro to the page. See Add a diagram to a Confluence page.

The page or work item no longer exists​

Cause: The content the diagram belongs to no longer exists, or you've lost access to it.

Solution: Reload the page. If the error stays, restore the page or work item from the trash, or ask its owner for access.

Still not working?​

Contact support with the page or work item link and a screenshot of the message.