90% of the time when I exit Minecraft through the Quit Game button, on the launcher the Play button will remain grayed out and the entire GUI is frozen up (cannot use ANY buttons, access the tabs, etc.) and will not allow me to exit the launcher via the red X. If I have it set to close on launch and reopen on exit it will not reopen. In both of these cases I have to end the task via task manager as it will continue "running" and leads to issues. Happens in both snapshots and releases, but only after I open a world and play it a while.