made an Firmwareupdate for Multiplus (4.92 to 5.05) on a 3 phase system with single phase AC input, but after that the ac input doens't work anymore. The reason is that "VE.Bus System Configurator" was changing "Set as group" back to enabled by File conversation. I repeat the prozess, by downgrade the system, set as group disabled and update again, to be sure what happen. Why is VE.Bus System Configurator changing this Parameter by File conversation