Hi, In a cloud where all services have been upgraded from Yoga to Antelope, I tried to upgrade Magnum but after the (successful) upgrade, Magnum reports "keystone client errors" when trying to retrieve the status of existing clusters or to create new ones (deletion of existing ones seem to work). The typical error is: ---- 2024-04-29 11:57:39.733 72464 WARNING magnum.service.periodic [-] Skip pulling data from cluster 2e8d6ee8-01cb-42d4-9b6d-0cf242cd4afa due to error: unexpected keystone clie nt error occurred: Forbidden (HTTP 403): magnum.common.exception.AuthorizationFailure: unexpected keystone client error occurred: Forbidden (HTTP 403) 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic Traceback (most recent call last): 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic File "/usr/lib/python3.9/site-packages/magnum/common/exception.py", line 57, in wrapped 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic return func(*args, **kw) 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic File "/usr/lib/python3.9/site-packages/magnum/common/clients.py", line 166, in barbican 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic self._barbican = barbicanclient.Client(session=session, 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic File "/usr/lib/python3.9/site-packages/barbicanclient/client.py", line 186, in Client 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic return client_class(session=session, *args, **kwargs) 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic File "/usr/lib/python3.9/site-packages/barbicanclient/v1/client.py", line 47, in __init__ 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic normalized_microversion = self._get_max_supported_version( 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic File "/usr/lib/python3.9/site-packages/barbicanclient/v1/client.py", line 88, in _get_max_supported_version 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic min_ver, max_ver = self._get_min_max_server_supported_microversion( 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic File "/usr/lib/python3.9/site-packages/barbicanclient/v1/client.py", line 119, in _get_min_max_server_supporte d_microversion 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic return self._get_min_max_version(session, endpoint, '1.1') 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic File "/usr/lib/python3.9/site-packages/barbicanclient/v1/client.py", line 125, in _get_min_max_version 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic resp = discover.get_version_data( 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic File "/usr/lib/python3.9/site-packages/keystoneauth1/discover.py", line 107, in get_version_data 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic resp = session.get(url, headers=headers, authenticated=authenticated) 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic File "/usr/lib/python3.9/site-packages/keystoneauth1/session.py", line 1141, in get 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic return self.request(url, 'GET', **kwargs) 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic File "/usr/lib/python3.9/site-packages/keystoneauth1/session.py", line 986, in request 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic raise exceptions.from_response(resp, method, url) 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic keystoneauth1.exceptions.http.Forbidden: Forbidden (HTTP 403) 2024-04-29 11:57:39.733 72464 ERROR magnum.service.periodic --- Did I miss something in the upgrade procedure? Thanks in advance for any help. Best regards, Michel