I ran into this grey question mark situation yesterday on PVE 5.1-43. Single node setup (setup PVE fresh 2 weeks ago) with all default options; no cluster. Rebooted node and it fixed the issue.
After reboot, I applied all updates - now at 5.1-46. Let’s see if this happens again.
I'm a Proxmox newbie, trying out Promox, to migrate from XenServer. I have a default installation of Proxmox, with local and local-lvm (lvm-thin) storages.
I'm used to the "Fast Clone" in XenServer, which I think is called "Linked Clone" in Proxmox. XenServer lets me "Fast Clone" a VM...