I have a cerbo gx with gx50 display with smart shunt and a mttp 100/20 both set up with ve direct cables. I can see the voltage flow coming from various items including Orion dcdc and blue smart charger . I can see the icon for pv charger as well as it showing solar input but it does not show the line with dots (voltage flow)to the battery . I have replaced the ve cable so far and tested the voltage output to the battery and all working correctly .The devices are wired correctly on the correct terminal on the shunt .any ideas what I could try next