I have been using a Cerbox GX in the camper for more than a year and it works perfectly.
I have now installed a second Cerbo GX in the house, linked it to my VRM portal access and connected two EM24 energy meters.
After I set them as "AC-Load", they also appeared as devices in the VRM portal.
However, solar chargers with the same ID can also be seen in the widget selection, which are also "seen" regularly.
This is surely just a minor mistake.