What happend to my fallout new vegas save?

i am playing on ps3 one day and i attemped the vault 11 super fast xp glitch it did not work so i thought it was patched and i went to go load my already glitched save but it wasnt there anymore i know i did not delete it but could it be the patch i am kinda mad because i had rare weapons and armor and lots of things on that save....oh yeah and i download dead money dlc this was after the glitch that worked