In Your App I see Dimension
=if(match(Assignedgroup,'A','B') and [Duration(in Days)]>=limit, ID)
and this filters itself Duration >= 5 since limit is 5.
However You add condition in my above Dimension like this
=If(Name='9day',If(Match(Num(WeekDay(TimeStamp#(Opendate,'YYYY-MM-DD hh:mm:ss'))),1,2,3,7) and [Duration(inDays)] >= 5,Name),Name)
Have You unchecked 'Include Null Values' ?