vCenter 7 Bug? (No Healthy Upstream)

Hi Guys

We've been Experiencing this error / bug / problem in vCenter 7 whenever we do the ff:

- Test High Availability (VMs restarts on the other server except for the vCenter Server)
    After powering on the esxi host where the vCenter is residing and the vCenter Server the error occurs

Tried the ff: re-installing, checking VM Hardware Version, checking the OS: no Photon OS in the list. restarting services but nothing works
in the end we need to restore our back-up.

Screen shot below

Thanks!