Redux returning an empty arrays in store - Reducer not working correctly?

I have recently put Redux into my app for the first time and thought I had it working but it seems to be returning empty arrays. I have checked my Postman get posts and it is working fine on the backend. Should my store be returning values if the arrays are empty like below?

What is likely the issue? I have a async Thunk action creator for it and a create slice Reducer that I thought were working ok.

If my index combineReducers that are createSlice are all appearing in white does this mean they aren’t working correctly? The auth and message ones are in yellow and my login works correctly however I didn’t use createSlice for them.

Update: I think this is to do with the syntax of my extraReducers “state: actionpayload.field”. There is no error message flagging but i’m not sure it’s doing what it is meant to do.

index.js

export default combineReducers({

    // combine the reducers
                user,
                fields,
                article,
                diveLog,
                marineList,
                diveSchool,
                diveSpot,
                admin,
                auth,
                message
});

reducer

const fieldsSlice = createSlice({
    name: 'diveLogFields',
    initialState: {
        current: [],
        region: [],
        diveType: [],
        visibility: [],
        diveSpot: [],
    },
    reducers: {},
    extraReducers: {
        // picks up the success action from the thunk
        [requireFieldData.fulfilled.type]: (state, action) => {
            // set the property based on the field property in the action
            (state: action.payload.field); (state: action.payload.items)
        }
    }
})
export default fieldsSlice.reducer;

action

export const requireFieldData = createAsyncThunk(
    'fields/requireData', // action name
    // action expects to be called with the name of the field
    async (fields) => {
        // you need to define a function to fetch the data by field name
        const response = await diveLogFields(fields);
        const { data } = response;
        // what we return will be the action payload
        return {
            fields,
            items: data.data
        };
    },
    // only fetch when needed
    {
        condition: (fields, {getState}) => {
            const {field} = getState();
            // check if there is already data by looking at the array length
            if ( field[fields].length > 0 ) {
                // return false to cancel execution
                return false;
            }
        }
    }
)