Unable to create and edit server profiles for the Superdome Flex, after firmware downgrade

Symptom

If any HPE Superdome Flex Server profile is associated with an nPartition prior to downgrade from firmware version 3.0.512 or later, it will be invalid in version 2.x.y and therefore no operation can be performed.

Cause

If any Superdome Flex server profile is associated with an nPartition prior to downgrade from firmware version 3.0.512 or later to version 2.x.y (outside of HPE OneView), then that server profile will be nonoperational. Firmware versions earlier than 3.0.512 do not support server profiles.

Action
  1. Before downgrading the firmware version to 2.x.y, unassign the Superdome Flex server profile.
  2. Remove the server profile and the rack manager.
  3. After the firmware downgrade (performed manually outside of HPE OneView), reimport the rack manager into HPE OneView.