Hello, everyone!
I noticed this behavior after putting the libvirt image on a new SSD. I stopped VM Manager, put the share on the new SSD, copied the libvirt file, checked permissions and started VM Manager again.
Before restarting the VM Manager or after rebooting the server, it looks like this.
virsh # net-list --all
Name State Autostart Persistent
--------------------------------------------
default active yes yes
virs