Hi Andrew, ok so I have got it all to work, however my preview whilst in the editor still shows up blank until I ~“play”. please see screenshots to show you how I have set it up. Let me know if this is wrong (I’m guessing it is?)
My button that is using the video is a rectangle, with a material on the object. when mouse overlaps it changes material to a different video (and off again once overlap is finished) the buttons exist as soon as level starts.
So my main two problems since 4.13 is that I no longer get previews in view port and for a split second when running Play the textures go black before loading. is there a way to fix both? thank you for your time.
Level Blue print -
Media Source
Media Player
Material



