When entering Access Control Settings "Manage ACL" if you forget a field you get a really confusing error message

I attached an image.
When I forgot a field I got a validation screen that also shows all the fields that where originally hidden via javascript/jquery.
So it was really confusing.
Alright it could be asked how did I forget such an obvious field in the first place ( -:
But it did take me a moment to figure out what the error was telling me.
See image.