Hi, seems like you dug in and narrowed it down quickly, the latest release resolved this issue 
Quoting the latest firmware release:
Noted a little feature: The secondary port is also listed in the Devices list, obviously without an IP as it is aggregated with the primary port. I guess it should be listed as it has its own MAC. I just updated the name to keep track of both ports/“devices”. Just a note, and I don’t know of there is any better representation of this.
