Permissions for a Custom Record Type Not Working.

You can use the Access Type list on a custom record type page to define a permissions model for a custom record type. 

The Access Type list includes the following options:

1. Require Custom Record Entries Permission
2. Use Permission List
3. No Permission Required for Internal Roles

For Require Custom Record Entries Permission and Use Permission List, limitation does not apply to the owner of the custom record type. The owner always has full permission to access the custom record type in any role.