Case Number: 01403504 if you'd care to look. The issue I see is that with previous 8.0 (skipped the 8.0.5) and 8.1.0.52 code in combination with various code releases for the G460's , vlans will not be displayed on the device edit/vlan definition screen. In some cases I can refresh the device or delete the device and add it back in and that fixes it. but not all the time. Other cases the vlans show but not on the uplinks (that are working) . The enforce preview ports screen does not show any current vlans on the uplink. So when you go to make a port vlan change to a user port since the vlans do not appear the action then deletes all the vlans on that uplink. At this point all port changes are being performed via cli. The Netsight suite is runnng on a VM. I guess we'll wait for the new release