Impacted VMs have different VMware tools versions.
Also impacted VMs have a variety of guestOS (Windows and Linux).
Many alerts in loginsight for "stopped monitoring GUEST heartbeat for VM" and "stopped monitoring APP heartbeat for VM".
VMware vCenter Server 8.x
VMware ESXi: 7.x
These are expected behavior as the loginsight log messages are consequences of load balancing going on by DRS.