Hi @Retired_mod - thanks for mentioning that. The issue is accessing the local file on the cluster not the dbfs location.

But it is still like you said a cluster config issue:
org.apache.spark.api.python.PythonSecurityException: Path 'file:/home/spark-c989284b-a795-4ca0-858e-84/logs.txt' uses an untrusted filesystem 'com.databricks.backend.daemon.driver.WorkspaceLocalFileSystem'