Manifold Nexus destroyed by terraform UP

[bvanevery]

I've been doing a lot of mindworm apocalypse world flooding lately.  That means wanting to raise land to keep from dying.  I call this a bug!  If anyone argues it isn't a bug, well I still say it's seriously misfeatured.

Details damned if you do, damned if you don't

damned if you do, damned if you don't

A mere 75 meters before it was going to sink, I raise the Manifold Nexus.  Only to discover... it gets destroyed by raising it too!  I'm down to +2 PLANET now.  I don't know if my Farm helped it disappear or not.  I suspect the Nexus is a terrain feature rather much like the Monsoon Jungle, capable of going <poof> if the land is raised.  Which is, like, completely and utterly stupid.  I thought having it drown was bad enough, but this, this is ridiculous.

[bvanevery]

I wanted to verify what happens when terrain is raised, without any kind of terraforming occurring in the Manifold Nexus square itself.

Details Nexus before raising adjacent square

Nexus before raising adjacent square

On this map, the Nexus starts at 74 meters.  The square my Super Formers are on, is at 10 meters.

Details after raising adjacent square once

after raising adjacent square once

After one Terrain UP, the Nexus is unchanged at 74 meters.  The square my Super Formers are on, is at 1700 meters.

Details after raising adjacent square twice

after raising adjacent square twice

After two Terrain UPs, the square that contained the Nexus is at 1574 meters.  The square my Super Formers are on, is at 2400 meters.  The Nexus appears to be destroyed.  Strictly speaking, I didn't put a base here to be sure of the outcome, but no Nexus artwork = Nexus isn't giving +1 PLANET in all the games I've played.

Details I control the Nexus

I control the Nexus

I rectify my mistake, costing the goodwill of the Cult of Planet.

Details I destroy the Nexus

I destroy the Nexus

Yep, my PLANET rating drops.  Nexus destroyed!

Details after detonation of Tectonic Missile 3500 meters

after detonation of Tectonic Missile 3500 meters

I surmise that an earthquake or a Tectonic Missile can destroy it.  I'm correct!

[ih8regin]

  I call this a bug!  If anyone argues it isn't a bug, well I still say it's seriously misfeatured.

Sadly, this is by design. Whatever you do to special locations (IIRC up to raising Monsoon Jungle) removes any special properties of a location. Tried lifting Uranium Flats, lost +1 energy, all that sort. This was both in SMAC and SMAX. However, please verify if this was fixed elsewhere. This made me use solar shade in order to protect the NExus and the like instead of terraforming.

[bvanevery]

I don't find anything listed in either Yitzi or Scient patch descriptions about this issue.  I'm not going to actually try those out as it would take more time, I don't generally have either installed, and it is unlikely that either did anything about it.