This is driving me absolutely crazy and have finally given up and resorting to help.
I’m trying to use this knob:
but when doing so only see this part of the image. I can tell by adjusting the knob destination parameter it is connected but merely scrolling from the top of the png to the bottom.
However, when I follow the exact same process with this knob (selected purely at random) it works perfectly:
After looking at the knob parameters side by side the only difference I can see (other than visually obviously) is the non-working knob renders to 101 frames whereas the working knob only renders to 17. However, even after rendering the non-working one to 17 this made no difference.