Einstein Sharing Setting Not Limiting Visibility

We have an Einstien dashboard that needs to be available for our Partner Community Users, but it needs the same security and sharing settings that's set on the object. We have a dataset created with the Sharing Source set to the respective object (Case), and Security Predicate is "none".

When I log into a partner community user that should only see their information, that user can see EVERYONE'S information.

What am I missing?