By your IDE log, it seems that you were not using zigbee multi switch, but you were already using Woobooung’s dth.
woobooung’s dth has feature of turning on&off all switches at once, and it seems that you enabled that feature, and that seems the problem.
Your ide log says that checkAllSwitchValue : off
it means that the virtual switch that controlls ALL switches at once is set to turn off all physical switches.
If you don’t want that feature, then open the parent device in IDE and check every child switch that belongs, and delete the child switch which has DNI(device network id) that ends with “ALL”.
Also, go to the device setting in the ST app, and select false to “Create All switch” option.