This may not be an issue with the game. A blue flicker usually indicates either a bad SLI bridge, or an improperly seated SLI bridge. Try the following:
- Reseat both connections on the SLI bridge and retry.
- If you still get flicker? Flip the SLI bridge around and try the game again
- Still get flicker? Replace the SLI bridge with a new one
I got this in other games and flipping the SLI bridge around worked for me. Hope this helps
EDIT: I hope this doesn't have to be stated, but please make sure you shut down your PC before attempting any of this.