Bom Split Balloon Issue

I have created a BOM table with repeat region, and given user defined parameters.

for example, I have replaced rpt.qty with ABC_QTY.

if asm_mbr_name == "P123456-002"

ABC_IDX = "0001"

ABC_DESC = "<DRAWING TITLE>"

ABC_QTY = "A/R"

ABC_PRT_NO = asm_mbr_name

and i have created custom balloon with ABC_IDX as index and ABC_QTY as qty.

So when i create the balloons for the first time it's working fine.

For this custom symbol split functionality is not working properly.

i.e if ABC_QTY = 2, then split balloons also have 2 as quantity in both the parts,

different behavior from creo's, which will split the quantity and both the balloon will have 1 as quantity.

Please suggest some solution, how to tackle this issue.

Any help is much appreciated.

Cheers!!