The Spaghetti Noise Cave variant divides itself at random points as it generates it's cave structure. I suspect this is due to cave pillars generating inside of the spaghetti caves. Inside the circles I drew on my screenshots is the divides in the generation. None of these caves are aquifers.
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I added some coordinates to ones I just found, I hope this helps! I will add more if I find more throughout the day.
I flew around a bit in that seed trying to find some, by chance do you have the coordinates for any of those screenshots?