So I moved Polk to Crittendon to get in the command radius of the Missouri army to get the corps for the force in Kentucky. When the next turn was resolved, I noticed Polk had vanished so I went through the log but found no notice of him dying. In WIA generals can die from frostbite so I thought this was the case here. So because I didn't fid him from the log, I pressed F1 and found him there. No graphic for him on the map though. Very odd glitch.
Save and main log attached.
EDIT: This is in the newest version.