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Description
I built a straight tunnel 2 blocks below sea level. The view (to the sea) is otherwise unobstructed but in cave mode I only see a part of the tunnel (somewhere in the middle and also what looks like at a 4-blocks-below level, i.e. the roof is missing). This doesn't seem to depend on building material.
So I guess my question is what are the criteria for displaying such structures?
I'll attach an image later today to demonstrate the issue.
[Minecraft-Overviewer 0.12.37 windows]