After migrating to Confluence, an old version of the page displays when editing

Issue Summary

A customer migrated their some documents to their Confluence Cloud sandbox. When viewing the page, its content and formatting look correct. When editing the page, the document's content reverts to an older version, not the version that was migrated from their existing Confluence setup. This occurs both in pages that have and have not been converted to the new Confluence Cloud editor.

Steps to Reproduce

1. Access the problematic page
2. Go to the edit mode
3. The draft version is different than the published version

Expected Results

When editing a document that is migrated, it should not show content from an older version of the page.

Actual Results

When editing a document that is migrated, it shows content from an older version of the page. It shows the correct up-to-date version when viewing the page.