Just upgraded an ESXi host from 6.5.0 (HPE version) to 6.5.0b (HPE version), and now in the ESXi web console, clicking Virtual Machines on the left, displays a blank panel on the right. I can see my 3 VMs listed under this Virtual machines object in the tree on the left, but prior to the update, selecting Virtual Machines would list all the VMs on the right in a table. Now its blank as you can see below.
Anyone else seeing this on 6.5.0b (HPE) ?