Put the summary of the bug you're having here
What I expected to happen was...:
Launcher close, Minecraft window open, Mojang logo, title screen and I play Minecraft
What actually happened was...:
Launcher closed, Minecraft window open, and closed before the Mojang logo appeared and I got a crash report
Steps to Reproduce:
1. Open launcher
2. Play version 13w47c
3. Watch and wait for the crash
Gonna have to wait untill next Thursday so we can get a fix 😞 😞 😞