A few weeks back, they were displayed in the map, now no longer. They do display under devices however, these are hardwired into the unmanaged switch. I’ve tried rebooting a few times and waited a few days for self heal lol but no luck.
IMO< this sounds like a double nat issue where it can go one way but not the other. Are you able to use the “LAN” port for the wifi unit with DHCP turned off ?