I used the blacksmith menu a couple of times without a problem and then it started jumping back to the top randomly as it used to do. 1.5.0.1
https://gamerdvr.com/gamer/spirantcrayon22/video/153960317
It was odd, it was okay, okay, okay, did quite a few minutes of thinking and changing, then suddenly it was horrible, every few seconds. So bad I stopped playing. Fingers crossed it goes away again. I have no idea what might have triggered it.