over 1 year ago - AndrewT - Direct link
Most likely this is a game version compatibility issue, OR a mod problem - are there any mods in use here?

If not you can revert to the game version in use back then, and load a save from that time (not one that's been updated by the current patch).

If there are mods in use, there may not be a fix - but try the User Mods forum.

Good luck!