Measure based on selected hierarchy

-- DAX rule number 1: NEVER filter a table
-- when you can filter a column.

-- measure 1 (internal, hidden)
[_IssuesCreated] = COUNTROWS ( Issue )

-- measure 2 (internal, hidden)
[_IssuesResolved] =
	calculate(
		[_IssuesCreated],
		keepfilters ( not isblank( Issue[Resolution] ) )
	)
	
-- measure 3
[Calendar Chosen] =
var __creation = isfiltered( 'Creation Dates' )
var __resolution = isfiltered( 'Resolution Dates' )
var __both = __creation && __resolution
return
	switch( true(),
		__both, "both",
		__creation, "creation",
		__resolution, "resolution",
		"none"
	)
	
-- measure 4
[Issues Resolved] =
var __calendarChosen = [Calendar Chosen]
var __value = [_IssuesResolved] 
return
	switch( true(),
		__calendarChosen in {"both", "creation"}, blank(),
		__calendarChosen in {"resolution", "none"}, __value,
		blank() // just in case but should not happen
	)

-- measure 5
[Issues Created] =
var __calendarChosen = [Calendar Chosen]
var __value = [_IssuesCreated] 
return
	switch( true(),
		__calendarChosen in {"both", "creation"}, __value,
		__calendarChosen in {"resolution", "none"}, blank(),
		blank() // just in case but should not happen
	)

Best

D.