I have two MultiPlus II 48/5000/70-50 in parallel. Until yesterday I was using assistants for ignoring AC Input 1 and for activating other devices throughthe primary relay, very successfully. After updating the firmware to v552, both units accept the assistants through VE configure, but in normal operation, they don't work (they don't do anything). I tried re-installing the firmware update, re-configuring the VE. bus parallel system and re-writing the assistants, with no luck.