I had the bright idea of spending two days getting the bronze, silver, gold and platinum trying to craft an RPG-7. When I DID finally get the level and ores for it, I crafted it and got absolutely nothing in my hotbar nor in my inventory. Thanks to this, I lost quite a lot of money that could have been used more appropriately. I was later told that RPGs were "disabled" for some reason which I still question. I'd like to get a refund on what I spent to get the RPG. Here's a video of me crafting the "RPG".