Found an odd bug for you. Created a new map to play with this mod and used the editor to generate the other planets and it threw an error that 'Gleba Stone' wasn't defined, or something like that. I looked over the map generation settings for a new map and that setting is indeed missing. It promptly closed my game without saving it and returned to menu. Not a big deal for a test map, but that could be bad for an actual save game. This mod might cause other issues with planet generation outside of Nauvis, but considering what you're trying to do that might not matter a whole lot. Figured I should bring it to your attention just in case since it force closed my game (back to menu, Factorio didn't simply crash and close) without saving.

I tried to replicate the crash, but was unable to. However, after spending some time in a testing world, I did find that none of the other planets actually have any generation tied to them. This is what most likely caused the crash, but I am unsure how I would be able to visit the other planets and not crash, while you would. I am currently trying to fix this issue and will upload a new version when it is ready. Thank you for letting me know!

Let me explain in detail what I'm talking about. I'm going to explain this as if you've not dealt with the editor in game much, but if you've used it before then I apologize for the simplicity of the directions, but I figured I would give you exactly what caused my problem to better help you replicate it.

First, start a new game. Any game mode will work, so I chose sandbox mode.
Next, press the ~ key in the top left of the keyboard to open the chat menu.
Type /editor
If you see something about enabling cheat mode, type /editor a second time.
Once the editor opens, you will see 12 buttons in the top left corner of the screen.
The top right button, Surfaces, will allow you to force generate planets in Space age as well as switch which surface you're looking at.
The current surface should say Nauvis, which is where you start all games. At the bottom of the list of buttons is a button labeled 'Generate planets'
This is the button I pressed to generate Gleba and then the game crashed to menu.

Hopefully this helps and I apologize if you already knew any of this. I really didn't want to take the time to legitimately play the game to the point where I land on Gleba to then have it crash and burn to test if it happens outside of the editor or a sandbox game. Basically, trying to generate a planet that's missing a setting in the world generation screen is likely affected by this, the game just happened to list Gleba.

Thank you for responding and walking me through how the bug occurred. I rarely ever use map editor so this was a big help. I was able to see what went wrong and have mostly fixed it. In the 0.0.19 version, Gleba, as well as all other planets, should be working fully. Both Gleba and Vulcanus have a bug such as local fauna not spawning and large lava lakes not spawning, but both should still be able to be completed fully if you wanted to play through a full game.