Originally posted by Ryzilynt:

I've never had it happen in 1100+ hours but i feel like I remember one of the devs talking about how it may be / may have previously been bugged in some scenarios.

Guess I've just got to dig out a bit more. it's weird. This is my first time in the biome, but the 7th vein I've found, so I DO know what I'm supposed to see...