PWM Output

Hello!

I'm trying to use an NI 9474 module for PWM output.  Using a cDAQ-9179 chassis with the following other modules:  NI 9229, NI 9239, NI 9239, NI 9214, NI 9403, NI 9263.

I get error -88708 when I try to run my PWM code within my large program (that includes AI, AO, TC).  When I run the PWM code by itself, I get good operation.

What possibilities are there that make "resource unavailable" for my counter within the larger program?

Thanks!