I've found this post that describes my situation, but naturally there's no answer. I've monkeyed with the various waveform generation examples built into LabView 2021 and they allegedly generate my PWM signal without issue. The problem stems from when I attempt to output the PWM signal (that is being sent to an internal counter I presume) or when I add a separate Digital Output task in the same VI.
I'm looking for a simple example that shows how PWM and plain old Digital I/O are supposed to exist on the same cDAQ I/O card.