Problem with Modbus RTU device in Wiser for knx

[Kilogica]

right now I can't reproduce the error, I noticed that everything is off (even Elfo Fresh and the heat pump), could it be a problem due to electrical interferences? Maybe when the system is running and absorb more current it generates noise on the bus, but it's really really strange that if we phisically disconnect one of the B21 it works well, I'll provide some screenshots when the problem shows up.