I see two things.
You have no cycles on the battery bank. So it has no way of knowing how much charge is in the cells. And the SOC set value is sitting at 0%. Your current voltage of 13.2 volts is 3.3 volts per cell, that is certainly in the very flat charge/discharge area for LFP cells.
What you need to do is charge the pack up to your desired full state. Then enter 100% (or maybe 90-05% if you don't fully absorb the cells) in the SOC set value and that should pre-set the SOC counter to your now full charge state. As you pull current through the BMS, it will count the amp hours going out and subtract that from the stated capacity. In your case, 280 AH. So if you set it to 100% and pull out 28 AH, it should then count down ad show 280 - 28 = 252... 252 / 280 = 0.9 or 90% SOC.
The cell over and under voltage values are a bit wide, but that is actually ok as long as the charging source and loads are set to shut down below 3.65 volts and above 2.5 volts (2.7 is better). If a cell does go out of range, it will run quick and hit the 3.75 or 2.2 limits in short order. I am being a bit more conservative, but I am also using flammable NMC cells, so I don't push them close to the edges. LFP is quite safe, so as long as your balance is good, you should just never hit those wide limits. I se you also have balance turned off, is there a reason? Or does it turn off balance since the cells are in range? My JK-BMS shows balance on even though it has not triggered any balance current in months.