I feel this is related to https://bugs.launchpad.net/cinder/+bug/1940466 as the fix for that is to allow "attaching" as state during a new attachment for multiattach volumes https://review.opendev.org/c/openstack/cinder/+/805072/11/cinder/volume/api.py#755
I feel this is related to https:/ /bugs.launchpad .net/cinder/ +bug/1940466 as the fix for that is to allow "attaching" as state during a new attachment for multiattach volumes https:/ /review. opendev. org/c/openstack /cinder/ +/805072/ 11/cinder/ volume/ api.py# 755