Unplugged devices show up in zha visualization with connection lines

Hi,

I’m new on Home Assistant and running …

Home Assistant 2023.2.5
Supervisor 2023.01.1
Operating System 9.5
Frontend 20230202.0 - latest

… with …

SONOFF Zigbee 3.0 USB Dongle Plus V2

… on a Raspberry Pi 3.

So far everything is going well except for a nous outlet that keeps losing connection. Although values such as rms_voltage or rms_current are displayed, switching is not possible. The switch jumps back to its original position shortly after it is actuated and the socket remains inactive.

Now I would expect that this socket would somehow be marked as disconnected in the hza visualization. That’s not the case. That’s why I completely removed another socket from the mains and expected that at least this one would disappear from the hza automation. But this socket is also displayed with a connection to the coordinator.

On the other hand, a temperature sensor that has lost the connection is still displayed, but without a connection to the coordinator, which is correct and what I would expect.

I would at least expect that the connection lines to the coordinator would disappear from the sockets.

Maybe someone can explain to me what the colors and the numbers on the connecting lines mean.

Stefan