Cannot access OpenSearch Insight Dashboard after installation of OpenSearch and OpenSearch Dashboard

I get the following with after adding the Insight Admin Role. Please advise if I need any other roles for permissions. Thanks AG.

{"message":"OrclAuthPluginException[User not authorized]: orcl_auth_plugin_exception: [orcl_auth_plugin_exception] Reason: OrclAuthPluginException[User not authorized]","statusCode":401,"error":"Unauthorized"}