Hi Vuforia,
Do you have a simple Youtube tutorials of Video Playback for Unity3D 2017.3.0f3?
We are having a hard time to find it in the core samples: https://assetstore.unity.com/packages/templates/packs/vuforia-core-samples-99026
A simple video playback tutorial will do just like this: https://www.youtube.com/watch?v=VQJ3lO9DjMk&t=604s
Or if you still don't have a solution for this please kindly update us.
Thank you in advance. We look forward for your help.
Regards,
Erwin