Adding a “Deny” policy for Access control to the Account admin role on the Access Control page of dpstudio could disable subsequent access. This is because a “Deny” policy supersedes all other “Allow” permissions for the Access Control. All account members (including Root users, Admin users) would be prevented from reversing the deny policy for the Access control through the user interface. It would not prevent application login, and all other RBAC controls would be unaffected. To recover from this issue, please contact the snapblocs support team to remove the deny policy from the Account admin role and restore UI access to the RBAC admin control settings.