NG vent doesn't necessarily appear anymore?

[tulkaz]

I have this worst map seed ever after Rocketry upgrade.

Map seed - 1821044456

 

Maybe the lowest quantity of water at starting point I've ever gotten. (around 102000kg, 102 tiles)

2 cool steam vent

3 oil reservoir

4 chlorine gas vent (3 buried, 1 exposed)

1 carbondioxide vent

1 iron volcano

1 gold volcano

1 volcano

 

Is it bugged or NG vent is not in the list anymore?

[BlueLance]

You should have 1 guarenteed and 1 50/50. I checked the world gen last night and that was still the case. Maybe it is hidden or deleted by another POI

[Zarquan]

There is a bug in the map generation where sometimes points of interest or even other geysers can overwrite a geyser.

[Neotuck]

I can't check right now but most likely the vent was deleted by a POI.  Any nat gas floating around a POI with no apparent source is a definite give away

[PhailRaptor]

Just loaded the seed.  The Caustic 50/50 went to Chlorine, so no luck there -- you can find it at the bottom right, breaching the Abyssalite into the Oil Biome.  But there should still be a Swamp NatGas that is exposed.  Strangely, I not only do not see the NatGas Vent anywhere, I see no sign of the template it spawns in, either.  The vent itself should be in a chamber only slightly larger than itself, with a thin wall to the right into another small chamber.

Curious....