Field Access on Container not functioning properly

[SpudMan]

When I apply security to my database limiting a privilege set from total access but allowing it modify access to all fields and all records but view only all layouts, the permissions work correctly on all fields except container fields. They do not allow access even though it is clearly allowed in the permissions. I am looking to paste *.pdf files in the fields for record storage. But I don't want users to have access to change layouts.