Strange mini aquifer wall-like structures can generate on the surface very commonly, creating a very scattered chaotic look. They aren't really hard to find either, simply flying around a world in 21w37a will show many such examples especially in plains and deserts.
I think they're either happening because of the way aquifer walls generate, creating walls around water that isn't there or is below the surface, or maybe because of noodle caves?
Steps to Reproduce:
Enter the following seed and coordinates.
Seed: -5144937205138557507
Coordinates: /execute in minecraft:overworld run tp @s 148.66 64.92 -130.62 38.95 5.94Observed Results
Notice how strange mini broken aquifer walls commonly generate on the surface.
Expected Behavior
Tiny curvy broken cave/wall-like structures to not be generating on the surface. These should only generate around entire aquifers. It doesn't look intended.
I can confirm this. Just in case the provided information isn't clear, here are some extra details.
The Bug:
Strange mini broken aquifer walls commonly generate on the surface.
Steps to Reproduce:
Enter the following seed and coordinates.
→ ❌ Notice how strange mini broken aquifer walls commonly generate on the surface.
Expected Behavior:
The expected behavior would be that strange mini broken aquifer walls would not generate on the surface, as they look abnormal and out of place.