Replacing water with lava creates obsidian oceans instead

[sargunv]

I tried replacing water with lava to get lava oceans/rivers/lakes in my alternate world, but instead it generates obsidian oceans/rivers/lakes.

worlds:
  world_other:
      copy: world
      chunk_generate:
        replace:
          class: ReplacePopulator
          replace:
            stationary_water: stationary_lava
            water: lava

[NathanWolf]

This is the natural result of replacing water with lava, unfortunately.

I'll check and make sure block replacement has physics disabled, but apart from that there may not be much I can do to counter the vanilla behavior here.

[NathanWolf]

I played around with this a little bit, tried various approaches:

• Catch PhysicsEvent and cancel it
• Replace with air prior to converting to lava
• Replace non-stationary water as well

Nothing seemed to work, unfortunately.

This is the same sort of issue as using the SuperConvert spell to try and convert water to lava- you just get a weird checkerboard of obsidian and water.

Unfortunately I'm not sure there's anything I can do about this but I will keep an open mind.

[sargunv]

Alright, thanks for looking in to it. I can't think of any solutions either. Even if it was possible, it would likely run into #4.