Video URL from Dataset shows default video. (Some bank / Some filled)

I have multiple dynamic pages which are all linked to a dataset.

Some of the pages have a video relating to the page content and some do not.

When I add a simple video box to the dynamic (title) page and connect it to the dataset, obviously all the pages with a valid URL in the field pull through and work fine.

For the pages that Do Not have videos, i have left the field blank, but it forces the defualt “Plane Overhead” video to appear.

This does work with other media such as images (eg, when there’s a still image or gallery unpopulated on a given page, it does Not appear on the dynamic page and simply hides the gallery or image altogether.

For the video however, it forces the “Plane overhead” video irrespective of being connected to a blank field in the dataset.

Note that when unconnected, i have tried to give it No url, so that it does not load, but it does not allow it.

But even when connected to the dataset with a blank field, it still pulls the sample video

Other pages with urls in the dataset do work. Also this is the case even when published.

Any help would be much appreciated.

Hey guys, any ideas?