Provide video success/failure quiz captions

I'm trying to provide the option for a video failure or success feedback caption after the user submits an answer on a quiz slide.

So far, I have been able to use the object state of the caption box to insert a video, but the video  plays behind the question text. Also, being a responsive project designed for mobile phones in portrait mode, the video orientation is not optimized and looks too small.

I thought about having the video on a separate slide, but this stops me from using question pools which is essential for this project.

Another point is project size. The project will be hosted on a site that is not optimized for streaming, making hosting the videos on youtube or another site great for reducing the project size and increasing streaming capacity. The youtube learning interaction is not an available option to insert into a quiz feedback caption....

 Using Captivate 9

Any ideas? Paul Wilson, You've posted some witty answers to other posts....