Oh, yeah, this is a bug. I think in the .cfg for your save, you can find Doodtron as a part, and if he's not a kerbal, make him one. I don't know if this works. Or how it works. Claw would know... one moment. http://forum.kerbalspaceprogram.com/threads/75586-Master-Thread-Unresponsive-Kerbals-in-EVA