Pylontech RS458 without Axpert king in parallel

Good morning,

I have an issue that I can’t seem to get my head around. I have had a single Axpert King running with my Pylontech batteries using the RS458 cable and PYL enabled without any issues for over a year now. I have now added a second Axpert King as a slave and I just cant get communication between the Pylontech and the inverter. Is there something that I am missing ?

The inverters both reads the SOC as 60% but the data stream that I am getting from the console port shows them at 100%

Main CPU version on both inverters are 00072.00

I’m not sure if the pinouts needs too be changed or firmware needs too be changed to get it too work again.