Issues with copying some containers across hosts, "Invalid devices"

LXD
3

This flag doesn’t seem to be available with the copy operation:

$ lxc copy remote-host:my-container my-container -s default
Error: unknown shorthand flag: 's' in -s

$ lxc storage ls
+---------+-------------+--------+------------------------+---------+
|  NAME   | DESCRIPTION | DRIVER |         SOURCE         | USED BY |
+---------+-------------+--------+------------------------+---------+
| default |             | zfs    | lxc-backup/lxc-storage | 2       |
+---------+-------------+--------+------------------------+---------+

Should LXD 3.0.3 support it?