Pull widgets function not pulling the full amount

Hi,

I am having an issue with this file. Sub-Checkout-2.rp (1.2 MB)

I’ve set up a simple button in the top section that says “add to cart”. When you click it the top box should disappear and the dynamic pannels below move up so that they are level with the top of the box titled “cart summary”. However, though this works perfectly in local preview, when uploaded to share it is stopping about 20-30px short! It’s such a simple function I don’t understand what I could have done wrong, or why it’s working on preview but not when uploaded.