It's pretty self-explanatory, the launcher works fine while the game is running. But, the second I click "Quit Game" it stops responding for a brief period of time. Then crashes.

Steps To Reproduce: ( Gotta follow the guidelines! )

1- Open Minecraft Launcher.

2- Open absolutely ANY version of Minecraft.

3- Switch back to Minecraft Laucnher while Minecraft is open to demonstrate that it works fine while the game is running.

4- Click "Quit Game" / Close Minecraft

 PS: I know someone has already reported this. But, their report lacked details. So, I thought I might throw out a detailed rundown of this issue to help.