I go to launch minecraft and it says its loading and then my launcher disappears like the Mojang loading screen would come up but it doesn't when I try and launch it again it says Game already Running.

"Entering the Nether" and the accompanying sound effect have been absent since 1.3.1.

It crashes when i try to launch

crashes when i use direworld on feed the beast but loads others fine

Players occasionally float into the floor to be bounced back when the server realises.