Did a job w/ Multiplus2 and BYD.Updated the firmware to 466 with Victron Connect.The Multi went nuts,running the fan,drawing rapidly fluctuating amps from the battery,wildly importing/exporting from the mains,etc.
Changed firmware on the BYD's to V4.4.12 and V2.V4.25 on the BMU.No luck.Reloaded 466 again,still no luck.
In the end had to go to Victron Professional,get firmware 459,use VE Flash to load it and problem solved.ESS assistant is being used and BYD settings as advised.
Anyone had problems with 466?