I used same like this… but the video is not playing and i am getting the black screen on the material.
Could you share a link to your scene, so we could take a closer look at the issue?
Yes…
It looks like the object meant as the video display does not have texture UV mapping required to correctly position & scale the video on the object. To export the UV mapping from the 3D modelling tool to Shapespark add a video texture placeholder. See: Adding video texture for more information.