This is more of an oversight than a bug, which could possibly confuse some people.
In the latest version 3.08 the registry cleaner lists "Old Start Menu Key" as invalid data to remove, however on the left for someone to disable finding that registry data they'd have to untick "Start Menu Ordering." Would be better if what the registry cleaner finds matches the tickable box names on the left.
And another one is "Used File Extensions" since what the registry cleaner actually lists to remove is more than what that simple description actually displays, such as: "Invalid or empty file class," and "Unused registry key."