I had a really weird bug, and not sure what happened. It was raining, I fed the cat a salmon, then went to the blacksmith. I purchased a robe and a building supplies, and it immediately jumped back to just after I fed the cat (so the two purchases were undone). Went back to the blacksmith, got the robe, saved it, then got the building supplies, with no issues. No traceback, just "weird glitch".
You need to get YunYun some hentai goodness!