Not sure if it's a bug, but I can't think of any better explaination.
I mine enough iron and coal for 4 steel stocks. I do all the processes needed to make a knife. After the server crashes, there are finally two open spaces on the smith table. I put the blade and handle on the table and press combine. After all this work to make a knife, what do I get? If things made sense I would get a knife, but Instead, I get a (censorship beep)ing weapon repair kit. Now, maybe the game is in an alternate reality, but still, how dis a knife handle connected to a knife blade not a knife?