First Transition in First day of Current Month

Hello every one I have an MDX calculation for Issue Status for First day of current month. I need to have new Measure which is shows First transition issue Status in first day of current month.

This is my current MDX :

CACHE ( CASE WHEN
not IsEmpty([Issue].CurrentHierarchyMember.Get(‘Status updated at’))
THEN
Filter(
[Transition Status].[Transition Status].Members,
( [Time].[Day].DateMember([Time].[Month].CurrentDateMember.PrevMember.startdate),
[Measures].[Issues history] )>0).item(0).getCaption
END
)