Log, log and more logging. Collect all the data you can.
In particular monitor SA Max charge current. Even with #8 Battery Type set to User, if the BMS is connected the BMS is still controlling #7, #9 and #11. #7 is shown as Max charge current in SA and the BMS will continuously update #7 to manage battery charging.
I suspect that #9 (Battery bulk charge voltage) and #11 (Battery float charge voltage) are somewhat mislabeled. I believe they are Max charging voltages and the Inverter will use whatever voltage is needs (up to max) to achieve the #7 Max charging current. With the BMS connected, #7 is actually BMS requested charging current.
You could consider simply unplugging the BMS cable at the battery or inverter. The inverter will then use the default #7 (which you can set as the BMS is not overriding it). As you change #7, Max charging current as displayed in SA will follow what you set. Remember, this charging current is divided among the batteries. As you increase charging current, the inverter will raise charging voltage to achieve the charging current you set. Keep an eye on the voltage as you do not want to overcharge the battery. With SOKTool you should also see an increase in current for each battery you are monitoring as you manually increase #7. You can always reconnect the BMS and I expect you will see #7 decrease to what the BMS wants for charging current.
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