Storyline 360 - mp4 file within the project -published web project will freeze when attempting to play the mp4.

thank you!

There are a couple of other mp4's in the project, but havent been able to test because we cant advance in the project (due to mp4 freezing).  I am storying the project in the cloud.

i am attaching an imaging of the slide before the MP4  and the MP4 slide.  thank you!