Unable to migrate or unshelve an instance with duplicate connectors error

Issue

• Host-evacuate on a physical compute node was attempted and all were able to migrate but one of the instances is giving an error while trying to migrate
• Unshleve operation for a sheleved instance failed

• duplicate connectors detected on volume error is shown on nova-compute.log in the compute node

  2022-01-01 09:40:31.772 7 ERROR nova.volume.cinder [req-aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa - - - default default] Update attachment failed for attachment aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa. Error: Unable to update attachment.(Invalid volume: duplicate connectors detected on volume aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa). (HTTP 500) (Request-ID: req-aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa) Code: 500: cinderclient.exceptions.ClientException: Unable to update attachment.(Invalid volume: duplicate connectors detected on volume aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa). (HTTP 500) (Request-ID: req-aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa)