Import fails at cluster-policies stage

[Raf-Ben]

Import of databricks workspace fails at cluster-policies phase: the error blocking the import is:
(the only error displyed using debeg mode )
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2023-01-24,16:09:41;DEBUG;[https://adb-xxxx.azuredatabricks.net:443] "GET /api/2.0/policies/clusters/list HTTP/1.1" 200 None
2023-01-24,16:09:41;DEBUG;[https://adb-xxxxxxxx.azuredatabricks.net:443] "PUT /api/2.0/permissions/cluster-policies/30629062710004EC HTTP/1.1" 500 None
Traceback (most recent call last):
File "migration_pipeline.py", line 349, in
main()
File "migration_pipeline.py", line 345, in main
pipeline.run()
File "/home/coolsoft/IaC/tst/dbxbackuptests/10jan2023/migrate/pipeline/pipeline.py", line 64, in run
future.result()
File "/usr/lib/python3.8/concurrent/futures/_base.py", line 444, in result
return self.__get_result()
File "/usr/lib/python3.8/concurrent/futures/_base.py", line 389, in __get_result
raise self._exception
File "/usr/lib/python3.8/concurrent/futures/thread.py", line 57, in run
result = self.fn(*self.args, **self.kwargs)
File "/home/coolsoft/IaC/tst/dbxbackuptests/10jan2023/migrate/pipeline/pipeline.py", line 73, in _run_task
task.run()
File "/home/coolsoft/IaC/tst/dbxbackuptests/10jan2023/migrate/tasks/tasks.py", line 227, in run
cl_c.import_cluster_policies()
File "/home/coolsoft/IaC/tst/dbxbackuptests/10jan2023/migrate/dbclient/ClustersClient.py", line 430, in import_cluster_policies
resp = self.put(api, acl_create_args)
File "/home/coolsoft/IaC/tst/dbxbackuptests/10jan2023/migrate/dbclient/dbclient.py", line 287, in put
return self.http_req('put', endpoint, json_params, version, print_json)
File "/home/coolsoft/IaC/tst/dbxbackuptests/10jan2023/migrate/dbclient/dbclient.py", line 268, in http_req
raise Exception("Error: {0} request failed with code {1}\n{2}".format(http_type,
Exception: Error: put request failed with code 500
{"error_code":"INTERNAL_ERROR","message":"Principal name not defined"}
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