편집 이력을 클릭하면 '요청한 URL 또는 리소스를 찾을 수 없습니다.' 오류가 표시됩니다.

The error shown was added as a result of Endless loading of post history when latest revision is hidden/inaccessible. Instead of endless loading you now see the error.
However, the edit indicator still appears for the first few hours. So, whenever a team member adds a hidden tag to your post, the pencil icon is displayed for a while, but you cannot view the edit. Later the pencil disappears and everything is as expected.