Game and PC freeze when i enter Mud Flats

Hello fellows, my english is pretty basic so i will try to explain the better i can.

I can play the game perfectly, im in endgame with some characters and play without troubles. Today i hear about Ruthless and i say, i give this game mod a try in SSF and create a new character.

When i enter in Mud Flats the game freezes and then my PC freezes too. I can load another character and play endgame maps and even all zones of the game, but when i enter Mud Flats with other characters again, GAME FREEZE, PC FREEZE, need to restart.

Already clean shaders, already check the files on steam, already re install the game.

The problem persist.

Any help please?

Solved:

I reinstall the Nvidia Drivers with a full installation, and the problem is solved.