Column Combination Chart

Hi expert.

please judgement to this problem. ( DesignStudio 1.3 SP01 )

chart - Column Combination Chart (dual axis)

and change properties measure to all "bar".

and press data filter button (  DS_4.setFilter("0MEASURES",["YSALE01","YSALE02","YSALE03"]);  )

change view [ pic 1 ] to [ pic 2 ].

it is not keep the properties "bar".

is it bug? or something more?

[ pic 1 ]

[ pic 2 ]