(Regenerate Terrain) No new biomes appear, and the generation settings do not change.

Thanks for the mods!

I'm having this problem: on an existing save (without the Alien Biomes mod), I tried regenerating the terrain using different ore settings (for generate very little ore).
Eventually, I received a notification that everything was successful. Map visibility was reduced, but I saw large, rich ore deposits (5 million) at the edges, even though I set the frequency and richness to 25%. I ran around the map and saw trees from the Alien Biomes mod, but no new biomes appeared.
When I tried starting a new game to test the Alien Biomes mod, the new biomes were created.