Board Thread:Questions and Answers/@comment-28846808-20161030165538/@comment-26131865-20161030223316

Indeed, it was my fault, sorry about it. Let me know if you find other ones.

The solution is: open the editor, click on the link and open the tab to edit it. Search for the name of the actual page (ex: Sleeping Beauty (Super Rare Cat) instead of just Sleeping Beauty), it should say "the page exists", valid, save.