The material is different in viewport and in render (cycles, 2.80)

I’m working on a project that relies on a noise texture. I used Ian Hubert’s sticker/decal tutorial to get this effect. The image is interrupted by a noise texture.
In the viewport, it looks like this:
problem-viewport
And this is what it’s supposed to look like, afterall I adjusted it according to the viewport. Thank you in advance.

But in the final render, it comes out looking like this:
problem-render
As you can see, the noise seems to be unexpectedly offset from where it should be. I’d appreciate anyone who could tell me what might be causing this and how to fix it.

For reference, here is the node-setup:

Actually i did this…
diff
…to see the difference…

Anyway: are the viewport setting the same as the rendered… because the number of samples may influence the precise noise computation…

I admit the difference is subtle, but it’s important to me.
Thank you, that might actually be it!