os_server_volume module - Can not find server to attach volume to

Hi,

I am facing a puzzling error.

I have earlier used os_volume and os_server_volume modules to create and attach openstack volumes to openstack instances.

I have successfully created the volume with the os_volume module and can see it with the openstack client using

`
(openstack_venv) [centos@grid-adm ~]$ openstack volume list

Forgot to add that I believe it is the server it cannot find since if I check the code line 107 corresponds to:

https://github.com/ansible/ansible/blob/stable-2.8/lib/ansible/modules/cloud/openstack/os_server_volume.py#L107

dev = cloud.get_volume_attach_device(volume, server.id)