Hello, sorry that I'm opening this old topic, but I have the same issue with my Deye 12kW 3phase hybrid inverter without battery (not yet connected). In general I would agree that grid tied inverter shuts down after sunset, but there is but, a huge but... I have two inverters, first that is 3phase Solaredge, that after sunset shuts down to stand by mode, but you can still log in to the app/inverter and check all the data. And second one, mentioned Deye hybrid inverter that restarts itself. And here is this "but"... Sometimes it shuts down and restarts just after sunset, sometimes hours after sunset, sometimes it's working 24h. So it cannot be related to not having proper voltage form PV/grid tie. So what is happening here and why it is not at least in stand by mode as Solaredge inverter?