[virt-tools-list] virt-manager doesn't clone all my guests

[LK]

Hi,

I really don't understand why on my Ubuntu Dekstop 17.10 and 
virt-manager 1.4.0 I cannot clone all my guests.

For some guests I can only choose "Share disk with domainName".

All guests are stopped.

I thought it could be a problem related to privileges, so I run 
virt-manager as root but the behavior has not changed.

I can clone the same guests using virt-clone.

LK