Loads the game menu, starts in with the Mojang label, then collapses it and returns to the launcher.
Can't even touch the game whatsoever.
Further, checking if it is a problem with non-migrated accounts, I migrated my account over and witnessed No change. Login is fine, but the game essentially refuses to start.
P.S. Java update irrelevant.
Comments 2
This is a technical support issue; this site is for bug reports only. For technical support please use the Mojang Support Center.
Please attach the complete output of the "Development console" which can be found on the second tab of the launcher.
If the launcher closes after game start, please edit your profile and select "Launcher visibility" then, "Keep the launcher open".