[Jon Stratis]

I'd recommend a couple of approaches for this. The key is to narrow down where the problem is - you have code, roboRio, PCM, solenoids, cylinders, wiring, and tubing all involved. The notes below can help you figure out where the problem is, which makes fixing it a whole lot easier!

Programming - add some debug code to put an output every time you open or close the actuator. Hopefully, you'll see the appropriate output once each button click, but I have seen improper coding cause it to alternate rapidly with each button click, ending on a seemingly random state.

Mechanical - check out the solenoids themselves - do you hear them change position? do they have indicator lights to tell you when each side is open, and if so what are they doing?

Electrical - probe the outputs from the PCM. Do you see the voltage changing appropriately? Are the signal lights on the PCM showing that everything is OK? Does the PCM receive constant power? Is the voltage jumper in the correct location (24V solenoids have been known to appear like they're working with the LED's when driven by 12V, but not actually work reliably)?