We have a BMV 712 Smart monitor. This year we added a MPPT 75/10 solar controller. I bought a Victron VE direct cable and routed it to both. When the cable is not connected, both units function perfectly. When I connect the cable, the display on the BMV displays all characters. However when connected by Bluetooth to the BMV, it still provides correct battery information. Does anyone know why this would be happening and how to correct it?