Steps to reproduce:

1. Working on zabbix 5.2.1 and VMware vCenter 7
2. Created host as written on Zabbix documentation
3. The admin gave Administrator privileges on whole vSphere context to test it
4. Started to collect data
5. Received messages like "item "vm.502a8df5-bffb-3ffa-399b-142ee1ab758b:vmware.vm.uptime[\{$VMWARE.URL},\{HOST.HOST}]" became not supported: Unknown virtual machine uuid."

Result:
See screenshot...