Pipes

Kobus, most I my issues have disappeared. I think the main reason is because I changed my PV panels wiring so that I now have three 330W panels in series. I have the same 12 panels you have, but previously only had 2 panels in a string. This would cause the MPPT voltage to drop below the minimum Volts required.
I also see a big drop in PV Watts, but this is only when the batteries are fully charged. 

 
My settings are similar to yours, but your bulk charging voltage seems high. You should check with your battery supplier what the recommended values are. Your back to grid voltage and back to discharge voltage are also different.

 
I think the reason the solar doesn't seem to change your battery, is because the battery is actually already fully charged, even though the inverter doesn't know it (SOC 73%).
I have a set of two 3.6kW Pylontech batteries, so with the cable between the Axpert inverter and the batteries, my inverter knows the exact SOC of the batteries. 

This is the way it always works. Below is another example I captured today:

So once the batteries are fully charged, the PV drops like a stone, because the load drops like a stone:)
I am never around to actually monitor the charging LED at this time, but according to the Pylontech interface, both batteries are at 100% SOC.

Thanks for all the advise guys. I started with the option to first replace the ACDC earth leakage with a model from Schneider and have not experienced any trips since last week Thursday.
I did however check the Neutral to Earth voltage at the output of the inverter even before making this change and it was around 0.5V, so it looks like my inverter already does the bonding.

Thanks for all the advise guys. I started with the option to first replace the ACDC earth leakage with a model from Schneider and have not experienced any trips since last week Thursday.
I did however check the Neutral to Earth voltage at the output of the inverter even before making this change and it was around 0.5V, so it looks like my inverter already does the bonding.

Crappy quality.
We’ve replaced 4 off them.
Finicky rcds tripping whenever can cause damage to other things like servers.
Happened to me.....
A lot has been posted on trips and rcds.
Don't assume the one rcd will trip before the other one does.
It all depends on the actual ma trip sensitivity per rcd.
 

I am almost certain that is your only problem. You should see the internal heat those units generate if you connect them after an inverter.  

I found that the Schneider brand definitely seems to be less sensitive to transients and high-frequency components than some other brands.