I am starting to see some minor issues when viewing the topology map.  They are:

1. Sometimes when viewing the map in site view, I can not expand the Client Group belonging to a switch.  There are four SG2008 switches in my map and one in particular is more problematic then the others.  The more troublesome switch is connected directly to the ER7406 gateway.

2. When expanding the Client Groups, the individual clients are not always highlighted when selecting a network filter to view a particular VLAN.  Initially, I thought this was a Chrome issue as MS Edge was highlighting the clients but now Edge is behaving just like Chrome.

LLDP is enabled for all devices in the site settings on the controller.  The switches have been rebooted several times with no success.  For me, this is not a major concern but it is something that is not quite right.