Re: Spore DLC Editor glitch
You can always delete your captain. You can always refresh all creatures in the respective editor, including the captain. You can also delete creatures directly in ingame Sporepedia, or directly on the PC under your own documents, there is the spore folder.
The error which you describe are documented.
You would have to roll through this guide
http://forum.spore.com/jforum/posts/list/81467.page
http://forum.spore.com/jforum/posts/list/50818.page#1842746
~Liz