Hello, I am using version 272.62 on two inverters for the last 3 years and ist works fine. 😃 I have one EASUN Axpert Max and a Solarpower24 Axpert max both with the same firmware. Should it be possible to use both devices with 272.62 in 1 phase parallel mode? Because in my last try one was master and one slave and I got NO failure code. But when starting the inverters AC output the inverters start, but they dont switch the load, so I get 0V on the output althoug I can hear the AC inverter running (the IEC power cable symbol doesn't appear). Is there anything I can do?