I keep getting an error when trying to embed a dashboard into my StoryMap.

I've attached a video to show what happens. Not sure if this is a new bug but this dashboard has worked in both classical story maps as well as a previous StoryMap. When watching the video skip to the 1:10 mark for the error. It looks like it is trying to load but fails. I have not tried embedding anything else.
*UPDATE
This is the dashboard I'm trying to embed,
Operations Dashboard for ArcGIS