Pro Form - Add to Cart Issue

I have an issue when I try to use Pro Form to add a product to the cart with modified price. I made a short video (3 mins) to show the issue.
Watch the Video

I appreciate any input that would help me resolve this, Thank you in advance.

@Helal I have the same issue like in your video. But what’s funny if you manually enter the price then it will add to cart with that price. Can you change the tag from “How to” to “bug report” so @Daniele sees it quicker?