I have the golden axe and it works fine, you need to see that when you smash something it breaks in 1/2 not in 2/2, ie it takes a single swing for them to be broken. The energy you require for that single swing is supposed to be 2/3 (stone/ore). Its not a bug, its the way its supposed to work. On the other hand a cool thing is that some of these also allow you to scare away the smaller animals with a single swing, which I like and agree with, since you are using the same tools for it. Hope you got it.