This was on the beta version. 0.7.0.5, I believe. Saw the update for 0.7.0.6 now.
Edit: I did see this problem earlier in the stable version also; that specifically happened when I got a free adventurous noble hire from rescuing him in an orc camp. Figured that it would have been fixed for the beta version though.
Edit 2: I specifically saved a different save file for this particular screen shot that I added, if attaching the .sav file would help debugging on your side.