How to make video play during built in on keynote

Hi everyone,

I'm making a product demo using Keynote.

My basic config is:

• Every slide has a video
• I'm using "Object Push" animation between slides.
• I've changed the "built in" animation in the videos to "none". By default it comes as "start video" built in.

What I want to do is to make the videos play during built in transition. But they only start to play when the Object push transition ends.

The good thing is that they continue to play during built out transition.

Any help?

Thank you