I'm using 4 of 2pac stick.

It work well when I connect only one. But connect 2 or 3 stick, there is crash.

GSD 4 : No valid hashes recently, attempting to reset
GSD 4 attempted reset got err:(0) LIBUSB_SUCCESS


I add screenshot.
http://i.imgur.com/bhqNIrl.png



Do I need to do something to use multiple 2pac stick?

Thank for your helping.