Is the map supposed to generate like the demo screenshot, with the starting area having grass, but outside of it being mostly desert? If so, then it doesn't work properly with Alien biomes.

The starting area is supposed to be a guaranteed high moisture area. The area around it may or may not be desert. Alien biomes vastly changes how terrain generation is performed and may not respect the moisture settings.

Edit: Came to report a new issue with Alien Biomes, but for whatever reason, decided to hijack this thread...

From what I've noticed.... it seems that when Alien Biomes is enabled, stumps are no longer left after chopping a tree.

I was thinking it was the treeees mod, but I finally just tested with no other mods. Stumps work fine with only Terraforming enabled, but when I enable Alien Biomes, I'm not seeing the stumps being left.

They will be left if the tree dies from weapons, I know that much.

lol, that I didn't test.

I usually like to run something like wood gasification, so I am typically looking to harvest the wood rather than simply destroy the tree...