I have a DS-2CD2387G2-LSU/SL and just upgraded the firmware to version V5.7.13 build 230504 from version V5.7.10 Build 220720 but now the White Light option is missing as a event trigger. I have tried downgrading the firmware but it says Firmware too old and fails to downgrade. Does anyone know if firmware V5.7.13 Build 230706 has this feature returned or will I need to find a way to downgrade the camera firmware to get this option back again?