MCM 2 scripts on 1 form issue (script value properties not getting saved)

[Zzyxzz]

Hello, I have an issue with 2 scripts attached to 1 quest. The values are correctly detected by MCM, but I can't change them. MCM always resets them.

One example of those sliders:

        {
          "text": "Hunger Fatigue",
          "type": "slider",
          "help": "Default: 2",
          "valueOptions": {
            "min": 0.1,
            "max": 10,
            "step": 0.1,
            "sourceType": "PropertyValueFloat",
            "sourceForm": "Fallout4.esm|80E",
            "propertyName": "SCM_HC_FatigueHungerBalance",
            "scriptName": "hardcore:HC_Managerscript"
          },
          "action": {
            "type": "CallFunction",
            "form": "SCM.esp|FA8",
            "function": "CallDamageFatigue"
          }
        },

the variable is defined in the script as:

float Property SCM_HC_FatigueHungerBalance = 2.0 auto

Tried to look up similar issues, but couldn't find any. Really don't know if that's a bug with MCM or if I made a mistake.