ArcGIS Storymap embedded video go black in full screen

[Nils_FredrikStenseth]

I have a storymap with 8 videos embedded from vimeo. For the first video there are no problems with showing it in full screen. For the rest of the videos they go black when trying to show them in full screen. They are all made the same way (screen recordings), and are about the same size.

I have created a screen recording showing the problem: https://vimeo.com/803161108