Have a slight issue with one of my (long/large) modals.
Indeed, when the modal is triggered on desktop it appears fine, but when on a MacBook for instance or tablet, it appears impossible to scroll to see the bottom of the modal which has a button.
Indeed, when you scroll only the background moves.
A possible solution is to dismiss the first one when you open the second one? I can’t understand the content of your screen shots so not sure if that will be a viable solution for you.
The way to do it any way is to add a custom data attribute to the button opening the second modal.
From memory it’s…
data-dismiss=“modal”
And vice versa if you want to return to the first one.