Have the same problem as all here. Using X55 and Razer Nostromo + Deathadder.

Launching the game all controllers gets detected. Going into a game, and looking into controllers all are gone. This happens every time.

If I do nothing I can use the x55, but if i go into the controller menu during a game the x55 setup stops working (also all controllers are gone in the config menu).

This has happened every time I launch the game.

Win 8.1 64bit, Saitek X55, Razer Nostromo & Razer DeathAdder.
I have diabled powersaving on the X55 stuff, but it did not help.