In the files you have sent me, there are no access rules applied to any of the pages. It is not possible for the default.php page you sent to redirect to another page, there is not server side code on that page at all.
looking at your access rules though, they dont seam to be set up correctly.
the "Board and Staff and Admin" rule and the "Staff and Admin" rule are both set to restrict.
In "Board and Staff and Admin" you have it set to:
"Board and Staff and Admins" - group Members: 1,2,3
In "Staff and Admin" you have it set to:
"Staff and Admin" - group members: 2,3
I believe you want to be using the Allow If condition instead of the Restrict If condition.