An error occurse when I try to load any snapshot after 1.7.10

As of today, when I try to load any snapshot that has been released after 1.7.10, the game begins to load but after flashing the game window with the word MOJANG inside the game closes and reverts back to the launcher. I have tried a restore of files used the previous day, (from when the snapshots were functional) and to no avail do they seem to work. Attached is the log I receive after returning to the launcher.