Hi,

Please review the "Limitations" section of this Unity Catalog DLT document. Do one or more of these described situations applicable to you, such as possibly:

Existing pipelines that use the Hive metastore cannot be upgraded to use Unity Catalog. To migrate an existing pipeline that writes to Hive metastore, you must create a new pipeline and re-ingest data from the data source(s).

https://docs.databricks.com/en/delta-live-tables/unity-catalog.html#limitations

Thanks.