Hi,
we have a strange problem which we could not diagnose properly.
- We tested all our motors and Victor drivers one by one. They were all running.
- We created a simple program which only creates PWM outputs. I checked all ports with a multimeter, and they are fine too.
- I double checked that there is 12V power on the left side of Victors, and their yellow LEDs are flashing.
However, when we connect the PWM outputs to 2 Victors,
only one of the motors turns. After formatting CRIO and downloading the program again a few times,
that motor stops still and the other one turns. 
The LED of the moving Victor is constantly on, while the non-moving is still flashing. Swapping the PWM ports does not change the moving motor.
Yeah, I know it's strange but I thought there are many experienced people here and someone could suggest a solution.
thanks...