Parent and Child Products

[Nagaraj]

Hi,

I am using VirtueMart 3.0.2 , I upgraded it from 2.0 version to 3.0 version. In my website there is a parent and child products. When i goto products details page. The child products appearing finely on a dropdown like " Choose Varient"

After selecting one child product the cost and image of the product is changing finely but the " Choose Varient" dropdown is not in selected state for that child.

What i mean is , I have the following products

Parent A
  Child A
  Child B
  Child C

When i am in PARENT A details page and selected CHILD C as varient that selection is not stick with the dropdown. Please check attached image for reference of issue.

Can any one suggestion a solution for this.??

Thanks