I can't sell utterly random items I may or may not have procured outside the bounds of the law ("housesitting" as it were). It seems to change between storekeeps but the items are completely random, from maize to a hat to a single shotgun, whether I've stolen them or not, in all seriousness. I didn't have this problem pre-patch. I've restarted the game, cleared the cache, and it happens on both my wife's and my characters.

Any ideas?