After i let my Colony die on purpose i had a look around the different Windows. I noticed that i was still able to asign a new Skill to a Character.
The Character List was empty, but there was a Character preselected (probably the last one i selected before). I was able to add a new Skill to him.
Steps to Reproduce
- Get Access to the Skill Tree (and have a Skill Point available for your Characters). - Let all your Duplicates die - Access the Skill Tree
This issue has been fixed in either a future version or updated in a previous version.