Put the summary of the bug you're having here

What I expected to happen was...:
after pressing "Play" the game should launch

What actually happened was...:
launcher disapperas and shows again with "
[22:52:10] [main/INFO]: Setting user: Mutiper
[22:52:10] [main/INFO]: (Session ID is <censored>)
Completely ignored arguments: [--nativeLauncherVersion, 307]
[22:52:10] [Client thread/INFO]: LWJGL Version: 2.9.0
"

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...