What does the "Failed: Not Enough Access" Approvals message mean?

Summary:

A user promoted an approval unit and now there is a "Failed: Not Enough Access" error.

Content (please ensure you mask any confidential information):

The promotion looks like it worked, but I'm not sure what this error means. I don't see any issues with security.

Version (include the version you are using, if applicable):

24.10.60

Code Snippet (add any code snippets that support your topic, if applicable):