Dynamic RLS - USERPRINCIPALNAME returning more than 1 criterium

hi , you should create a users and users and their variables (Supervisor and Functions) table for this , this variable table should include two column users & all the variables related to that user

and then create a relationship between user and variable table

And create this measure

SelectedValuesFilter3 =
VAR SelectedValues = VALUES('User&Sup&Fun'[Value])  
VAR MatchFound =  
    SUMX(  
        SelectedValues,  
        IF(  
            CONTAINSSTRING( MAX(Table2[PathF]),'User&Sup&Fun'[Value] ),  
            1,  
            0  
        )  
    )  
RETURN  
IF(MatchFound > 0, 1, 0)

I have create a new path column called pathf in here without the first part of the path but if you need it as well you can use the orginal path & Table2 include your main table name in there

And include this measure into your table filter and say you only need to see 1

And apply RLS to users table and it should work