hi @Borislav Blagoev​ 

Have you check the list of limitation for DB connect? docs here https://docs.databricks.com/dev-tools/databricks-connect.html#limitations

Limitations

The following Databricks features and third-party platforms are unsupported:

1. Structured Streaming.
2. Running arbitrary code that is not a part of a Spark job on the remote cluster.
3. Native Scala, Python, and R APIs for Delta table operations (for example, DeltaTable.forPath) are not supported. However, the SQL API (spark.sql(...)) with Delta Lake operations and the Spark API (for example, spark.read.load) on Delta tables are both supported.