Minecraft Just Won't Launch

What I Expected Was That Minecraft Will Launch With No Fuss.
What Actually Happened Was That Minecraft Won't Launch. A Blank Game Output Screen Is all That shows Up, There is No Crash Report Because It Is Not A Crash.
How That Bug Occurred:
1: I Opened The Minecraft Launcher.
2: I Pressed Play.
3: All That Shows Up Is A Blank Game Output Screen, With No Crash Report Because It Isn't A bug.
You can Watch The Video Online Or Download the The Video Below, Then Open It To Have a Clear Understanding Of The Problem.
https://www.dropbox.com/s/q15etqfcsgrzzrj/Launcher%20Bug%201.mp4?dl=0