Videos doesn't play when packaged

[anonymous_user_728537081 (anonymous_user_72853708)]

https://scontent.fhan2-3.fna.fbcdn.net/v/t1.0-9/38404647_697374270603602_3456379007379963904_o.jpg?_nc_cat=0&oh=833dfb82870288ad5c02561d32a62074&oe=5C0E01F0

Here, everything is so smooth