Died while "generating world" was shown.

Your game is broken because of how much stuff I lost from the stupid ender portal just because of the screen saying "GENERATING WORLD!!Unable to render embedded object: File (" when I hear myself dying and it loads so freaking slow. I might just never play minecraft because I played FREAKING 1 HOUR FOR MY DIAMONDS AND NOW ITS ALL RUINED FROM YOUR GAME) not found.