The same thing happened to me.. posted about it earlier. I'm at work right now, but I'm going to experiment when I get home.
Question: did you have any mods or cheats going?
I was using Envida's labbench mod at the time, I'm going to try uninstalling it and seeing if that fixes anything.
Always assuming I make it out of the hawk
I'll post here and let you know what I did.