selections shows only previous option on mobile

Hi,
I have an issue with the selection of the product color and sizes only on mobile.
For example on first click on color I see no change or mark, on second click on size, I see a mark only on the color and no change on size, when selecting second size I see the mark on the color and first size but nothing on second size.

The page I need help with: [log in to see the link]