Switch Config in LuCI "Wrong"

At least there is a warning!

At the moment, “LAN1” and “WAN” are plugged in.

As the router is routing from br-lan to eth0, the “CPU” label appears to be incorrect.

Moving the cable from “LAN1” to “LAN2” results in the image showing “Port1”, “Port2” and “Port3” connected.

It is Luci compatibility problem

Is the switch DSA aware or is it configured with swconfig and “old-style” config, or is it something else?