Hi Thomas,
I have created the schema via hdbschema so _sys_repo should have access to it but I cannot see it under Object Privileges tab for this user. I tried activating the hdbschema file many time but still the same issue.
When I created hdbrole, it got assigned to _sys_repo automatically. I tried executing procedure but got same authorisation error.
Issue here is that schema is not getting assigned automatically to _sys_repo.
I had tried to create an another new schema via hdbschema still this new schema did not get assigned to _sys_repo.
Message was edited by: Rakesh Kumar Bhure