Resolved
Reported for: Toolset Access 2.3
Resolved in: Toolset Access 2.4
When you enabled advanced mode in Custom Roles tab of Access settings, you can change permissions only for roles created by other plugins and not for the WordPress built-in ones.
This issue will be fixed in the next release of Toolset Access.
In the meantime, you can download this file, extract it and replace:
Ajax_Helper.php
file in /types-access/includes/
folderAdmin_Edit.php
file in /types-access/includes/
folder