If you have an opviewer TOP pointed at a container with scroll bars active, the opviewer TOP will not show the container being scrolled when you are scrolling it.
This makes using the remotePanel tox from the Palette a little problematic. I had to manually create a scroll bar with a slider COMP moments before a show went live because the designer had tested all of the parts of the UI on his end… EXCEPT for the scroll bar of course
example file attached: