The To avoid page title conflicts, the Copy Page Tree app must make pages unique in the destination space to avoid page title conflicts.
When copying within a single space, when the destination space IS the origin space, hidden pages in the copied page tree can cause trouble. A hidden page has restrictions that prevent the copying user from seeing the page. They don’t know it is in the tree they are copying.
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From the page summary, the admin user can “View Page History,” view the current version, and delete the problem page. That is the brute-force fix. A better way is to contact the user who created their page and have them rename it to fit in with your Search/Replace scheme or delete it themselves.
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A user who can set page restrictions on pages can cause trouble in a space. This is only one example of the problem that private pages can cause. That is why Confluence does not, by default, grant this ability to most users. You should carefully consider this ability before granting it to all your users in a space.
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