That's weird.. Never seen that good information brother....

I don't have anything that supports multiple strings. But i have seen tracking problems on some controllers like you're showing, that does seemed be fixed by changing up the PV series count. I think it's probably buggy MPPT algorithms.

Might be an issue of insufficient power per MPPT channel, not so much mismatched PV array potentials. Could also be if they are multiplexing one processor to do the MPPT sweep for each channel sequentially and it is carrying over variables from the previous channel cuz bad code or something.

Klein really let down us when they made that multimeter. It works awesome but the problem is it turns off to fast even while you're using it and the biggest problem is that it's impossible to see the digits in the sun. Even when you hold the brighten button it doesn't even help much.

The powmr 5k does that when in low light, it won’t settle out, it will pull the panels all the way down and then let go and try again, it just keeps the same amps and pulls the voltage down till it crashes

I wish I had seen you bought this inverter and were having issues before now. I was very seriously about ready to purchase this, or the Luxpower (Huayu's supplier) 12k. I received such poor correspondence with these companies, coupled with reading about someone that sent money to Huaya for a 10k inverter, which they said they had in stock, only to have to fight tooth and nail with them for months to finally get a refund, which he only got after going public about it. I could also find nothing to suggest the inverters are solid, or even sorted, and god knows tech service or even getting something repaired would be a nightmare. All for $5k for the 10k model (obviously more for the 12k). It might turn out to be a great inverter at some point in the future, but for less than $3k more I decided spending the additional money for a Sol-Ark 15k was the wiser choice. At least I know it will work, I'll have amazing TS/CS 24/7, and no worries if it needs to be repaired. Not to mention it's a lot more inverter. I'm always big on saving money, but I'm very, very happy I didn't take a gamble on this inverter (or the Megarevo which seems to be loaded with issues as well)! I wish you the best of luck with yours!

Any discounts on panels for Disabled Vets, when picked up at your place in Mansfield?

Or voltage max input?

What is the max input for watts on your inverter?

Isn't it standard guidance to have identical, or at least very similar, strings coming into a charge controller? Does it have three distinct and separate charge controllers, or a single charge controller with the capacity to handle three incoming strings?