Do you have the BTS connected ?
I though that was ignored when you set the battery type to Lithium but if not then it may limit it.
I've seen it in "current limiting" and "Controller Termperature too high" modes with just alternator charging (solar not connected at the time). Recovered once the initial boost had finished.
Nothing connected to the BVS - Battery Voltage Sensor terminals as I don't have a smart alternator
Nothing connected to the BTS - Battery Temperature Sensor terminals of the controller as I have Lithium batteries batteries.
Battery type set to Lithium (2 x 100Ah Renogy Smart Lithium in parallel)
As you can see in the screenshots the house battery temperature is listed at a static at 25 °C when nothing is attached to the terminals.
The controller temperature goes a bit bonkers when out of range !
View attachment 36039
View attachment 36038