Acronis Backup 12.5: Activities are absent or incorrect on VMs with agent-less backup

Symptoms

1. You have a virtual environment protected with Agent for VMware or Agent for Hyper-V
2. When a backup plan is applied to two or more virtual machines, activities for backup progress are not shown on virtual machines; instead they are shown on Agent that runs on hypervisor level.
3. Alternatively, warnings or activities are shown on incorrect virtual machine

Cause

Specifics of product architecture.