Design Aera (drop and drag) cuts off stacked contains

In Bootstrap’s UI (Studio) I am unable to view past 600 pixels in hight. I can see the outline of container but not the contents of the container in the UI. The problem resides with the UI displaying the containers contents. Note, the Containers display properly online

Does anyone know how to correct this problem?

This is usually related to elements that are position:absolute and or elements that are collapsible such as tabs, accordions, modals and collapse components I believe. So what some of us do when we run into this type of thing is we temporarily set the body element to have a huge height to something along the lines of:

body {
    height: 100em;

This will very likely solve your issue in the app until you have filled in more content to increase the height of your project.