HASONEVALUE() not working inside a Table definition formula

Task:

To show top 5 products out of 100s,  user can select a period with a slicer.

So I create a table using the following DAX formula

TablaTop = filter(

                   SUMMARIZE(Historia,Historia[Marca],Historia[Tema],Historia[Año],"Dato",SUM(Historia[Dato])),

                   Historia[Tema]="PDM"

                   &&

                   Historia[Año]=IF(HASONEVALUE('Años'[Año]),VALUES('Años'[Año]),MAX('Años'[Año])))

There is, additionaly, a calculated column to distinguish the top 5 from the others

Top = IF(RANKX(TablaTop,TablaTop[Dato],,DESC,Skip)<=5,TablaTop[Marca],"Otros")

Tables related:

Historia is read from excel. Has several years of data.

Años is a one column table that is derived from Historia from Query editor.

let
    Source = Historia,
    #"Removed Other Columns" = Table.SelectColumns(Source,{"Año"}),
    #"Removed Duplicates" = Table.Distinct(#"Removed Other Columns"),
    #"Sorted Rows" = Table.Sort(#"Removed Duplicates",{{"Año", Order.Ascending}})
in
    #"Sorted Rows"

If I put IF(HASONEVALUE('Años'[Año]),VALUES('Años'[Año]),MAX('Años'[Año]))) in a measure and put the result in a card visualization it shows the correct result the measure reacts to changes from a slicer with 'Años'[Año] in it. So it works.

The issue:

Table TablaTop does not refreshes at all to slicer selection.

If I replace IF(HASONEVALUE('Años'[Año]),VALUES('Años'[Año]),MAX('Años'[Año])))  in TablaTop definition with a valid year number the results are perfect.

 i.e.

TablaTop = filter(

                   SUMMARIZE(Historia,Historia[Marca],Historia[Tema],Historia[Año],"Dato",SUM(Historia[Dato])),

                   Historia[Tema]="PDM" &&

                   Historia[Año]=2016)

This works

Need help to resolve this issue. Any alternative formula is accepted.

Thank you in advance