Applies to SnapCenter Server 4.0.x Issue When you upgrade SnapCenter Server from 4.0.x to 4.2 and if you already have SnapCenter Plug-in for VMware vSphere, you will not be able to use existing VMware...Applies to SnapCenter Server 4.0.x Issue When you upgrade SnapCenter Server from 4.0.x to 4.2 and if you already have SnapCenter Plug-in for VMware vSphere, you will not be able to use existing VMware Plug-in operations until you migrate to 4.2 virtual appliance.