Dynamic Checkout Not Visible Half Of The Time

Hello Community, I noticed that the dynamic checkout button is only visible half the time. When screen recording visitors almost 50% of them see a blank space below the add to cart button or sometimes only the word “pay”. This happens to visitors regardless of their country, system or device. I attached 3 screenshots, 1 shows how the dynamic button displays correctly, and the other two show visitors who didn’t see the dynamic checkout button. I hope anybody can help and find a solution to this problem. Thanks in advance, Simone