Hello! 

According to Databricks documentation on azure :

"On Databricks Runtime 15.3 and below, fine-grained access control on single user compute is not supported. Specifically:

• You cannot access a table that has a row filter or column mask.
• You cannot access dynamic views.
• To read from any view, you must have SELECT on all tables and views that are referenced by the view."

Well, I am using DBR 15.4 LTS and getting the following error message when running an optimize job (OPTIMIZE table name) on some tables that have a row filter:

Py4JJavaError: An error occurred while calling o388.sql. : java.util.concurrent.ExecutionException: com.databricks.sql.managedcatalog.UnityCatalogServiceException: [RequestId=d5be0519-**** ErrorClass=INVALID_PARAMETER_VALUE.ROW_COLUMN_ACCESS_POLICIES_NOT_SUPPORTED_ON_ASSIGNED_CLUSTERS] Query on table **** with row filter or column mask not supported on assigned clusters.

This is my job cluster configuration: 

Can you please help me figure out when could possible cause such an error ? 

Thanks a lot!