[W|0.4.462] Gameplay: Colonist has errored out w/Driver Exception

[ValsNoisyToys]

Summary: Andy had an issue in my livestream yesterday. Here is the info.

Short Error Text: Driver exception System. NullReferenceException: Object reference not set to an instance of an object at <snip> (See jpg & save file for full message)

Steps To Reproduce
- Alas I don't know how to reproduce.  I wasn't watching him at the time, I hope the error message and save file are enough for you to track down the issue.

Expected Results
- For him to go about his business

Actual Results
- He has an issue.

Notes
- When you load the save file, Andy is right there, with his error on display when you click on him.

Attachments
- Files are too big to load to forums. I've included links to my Google drive files for you to download / view.
* Andy Error.jpg - a screenshot showing the error displayed in lower left panel
JPG URL: https://drive.google.com/file/d/0B8ES-c4QgTnZMFZOVjV3RWhJYjg/edit?usp=sharing
* DontKillUsPlease 2.rim - the save file with the errored out Andy
Save File URL: https://drive.google.com/file/d/0B8ES-c4QgTnZNV9zSThSLWhyb0k/edit?usp=sharing

[ValsNoisyToys]

I've been watching back my livestream and I have noticed that the error probably occured just after Andy recruited Sir.  I'm attempting to reproduce and provide a save file just prior to the error.

[ValsNoisyToys]

Unable to reproduce.  However, I am providing the autosave file prior to the error occuring (save file is renamed).

DontKillUsPlease - andy.rim: https://drive.google.com/file/d/0B8ES-c4QgTnZakw3OVFqTEFsTlE/edit?usp=sharing