[ovirt-users] Creating Snapshots failed

Hello Community, since I upgrade our cluster to ovirt 4.4.6.8-1.el8 I'm not able anymore to create snapshots on certain VMs. For example I have two debian 10 VMs, from one I can make a snapshot, and from other one not. Both are up to date and uses the same qemu-guest-agent versions. I tried to create snapshots over API and on web gui, both gives the same result. In the attachment you found a snipped from the engine.log. Any help would be wonderful! Regards, Jonathan