Wow, so there appears to be a big problem with Growatt HPM. I have 2 in parallel 5000TL HPM-WPV.
12x340w panels each, 8x3600kwh Dyness batteries. ( I’ve also been playing around with panel configuration for a totally off-grid installation at our rural guesthouse.)
In any case, everything was working great ( a few hiccups) until suddenly each inverter will not put out more than 17A charge current. This is a major problem since on overcast days I’m forced to reconnect to Eskom which is my goal to divorce due to their outrageous connection fees for rural installations.