I was smithing a molybdochalkos plate for a lantern with a bismuth bronze hammer and anvil. The metal is cooling down, and as that happens my hammer breaks. I grab my backup hammer and get back to it, getting rid of the three or so leftover voxels at the end. With each strike, not only does it destroy the intended voxels but also the voxels underneath. I didn't notice until the third strike, resulting in one missing voxel. So I go, oh well whatever, and I grab the two other ingots that have just heated up for nails and strips (so now I'm using that new hammer at the target temperature). When I start heavy hitting, the voxels are doing the usual spreading out, and then after maybe half a second they move again, spreading even further out.
So to me this seems like a bug resulting from breaking a hammer on a workpiece and then using a new one on the same workpiece. This happened to me once before, but it wasn't at such a critical point in smithing a workpiece. This time, the waste of it frustrated me, so I figured I would make a forum post.
Has anyone else experienced this? I couldn't find any existing info. Is this a bug or have I made a mistake?
This is on the current stable version with no mods affecting smithing or metals.