We have created a role in DSE cassandra with login=true and superuser=false. After creation we deleted and recreated the role. We have a six node DSE cluster. We observed that the role has been correctly updated in all nodes except in one node where the can_login and superuser was showing null in system_auth keyspace for the roles table. We manually updated the table to take care of the immediate issue. But we wanted to know why it did not get updated in that node.