I need to highlight the max value of a bar chart that is filtered with tabular editor

[Jvera2286]

Hi, I´m trying to create a measure to highlight the max value of a bar chart using the conditional formatting. Said chart is filtered with a calculation group from tabular editor to show the las 13 months based on a selected month. 
This is the calculation group used as filter:

VAR NumOfMonths = -13
VAR ReferenceDate = MAX (Calendario1[fecha] )
VAR PreviousDates = DATESINPERIOD ( 'Calendario ult 12 meses'[fecha]; ReferenceDate; NumOfMonths; MONTH )
VAR Result = CALCULATE ( selectedmeasure(); REMOVEFILTERS ( Calendario1 ); KEEPFILTERS ( PreviousDates ); USERELATIONSHIP ( 'Calendario ult 12 meses'[fecha]; Calendario1[fecha] ) )
RETURN Result

and this is the measure I'm trying to use to highlight the max value:

Medida Resaltar Maximo =
VAR Maximo = CALCULATE(
MAXX(ALLSELECTED('Calendario ult 12 meses'[fecha]), SELECTEDMEASURE())
)
RETURN
IF(SELECTEDMEASURE() = Maximo, 1, 0)

however all the columns change color afterwards.

[amitchandak]

@Jvera2286 , if you are not using calculation group, then use a measure like

Medida Resaltar Maximo =
VAR Maximo = CALCULATE(
MAXX(Values('Calendario ult 12 meses'[fecha]), [Measure]), allselecteted()
)
RETURN
IF([Measure]= Maximo, 1, 0)

In calculation group try like

Medida Resaltar Maximo =
VAR Maximo = CALCULATE(
MAXX(Values('Calendario ult 12 meses'[fecha]), SELECTEDMEASURE()), allselecteted()
)
RETURN
IF(SELECTEDMEASURE() = Maximo, 1, 0)

[Jvera2286]

Hi, thanks for your answer, I tried your solution but all columns change color after applying it. I turned it into a table and this was the result:

The Period I'm filtering is from Mar-2023 till Mar-2024 but it seems that it evaulates the maxx part of the measure each month vs itself instead of comparing each month value with the max value of the series.