Problem with sustain mode

[wizjastudio]

Hi comunnity. I have a management system for two systems based on Multiplus and SEPLOS batteries. In one system, everything works fine, but in the other, when discharged to 50%, the system switches to sustain mode, and I don’t know why. One system has higher voltage values ​​for alarm and restart and doesn’t switch to sustain mode. Now I’ve changed the values ​​in this faulty system to lower ones, and it still switches to sustain mode. Theoretically, the BMS is supposed to control charging and discharging. The battery mode is set to WITHOUT BATTERY LIFE, so shouldn’t it switch to sustain mode? The worst part is that it charges the batteries from the mains, which I definitely don’t want.