Main Menu Animated Background - Help please

I have been working all day to find out why my main menu’s animated background would play with the media player but after I press play to test the menu buttons and all (Entering simulation), The screen goes black. It was fine when the background was an ordinary background but now, it’s turning black on animated and the media player isnt playing anything after it starts. If I start the player while in simulation, it will play but will go black again when i leave simulation. Anyone know how to make a main menu background animated in any other way? I’ve seen some youtube vids but they’re from 2015-2016 in older versions of UE. I will post a few pics of my situation here. The current asset im working with is the Menu Builder Carousel.