Default Zoom Product Featured Image problem

Dear Guys,

May I know did you guys facing zoom product and variation problem? When I using default zoom of woocommerce the variation working but the featured image size is no arrange properly.

But when using other zoom style which is created by theme owner the variation is no working. https://www.shopbuzz.com.my/product/cute-girls-casual-backpack-bag/

Quite confused for this part. Please help me to fix this problem

Thank You