Custom previous period data

Hello Power BI community,
I ran into a problem when trying to get the sales from different custom periods.
I created a new calendar table to get a union column with different period ranges (last 7 days, last 15 days, las 30 days, this month, last month and a personalized time period to select from a slicer.

I am trying to get the sales from the previous selected period, this is the DAX code I have:

Total Sales Last Period =

VAR startDayActPeriod =

    FIRSTDATE(

        'Calendario Rangos 2'[Date]

    )

VAR EndDayActPeriod =

    LASTDATE(

        'Calendario Rangos 2'[Date]

    )

VAR daysActPeriod =

    DATEDIFF(

        startDayActPeriod, EndDayActPeriod, DAY

    )

VAR startDayLastPeriod =

    FIRSTDATE(

        DATEADD('Calendario Rangos 2'[Date], -1 * daysActPeriod, DAY))

VAR endDateLastPeriod =

    PREVIOUSDAY(

        LASTDATE(

            DATEADD('Calendario Rangos 2'[Date], -1 * daysActPeriod, DAY)))

VAR result =

    CALCULATE(

        'Medidas KPI Sell out'[Total Ingresos],

        DATESBETWEEN(

            'Calendario Rangos 2'[Date],

            startDayLastPeriod,

            endDateLastPeriod

        )

    )

RETURN

    result

 

This only works when I select a personalized period and choose a specific date from the date slicer.

 

However, when choosing a customized range, the result is "blank"

 

Thanks in advance for all your help!