Hand Picked achievement not working?

Sorry if this post has something wrong with it, this is my first reddit post, I made an account just to ask this. So, from my understanding, to get the hand picked achievement you have to pick a sugar lump when it has a 50/50 chance of failing, and I just did that, it was a meaty sugar lump and it gave me the sugar lump. But, I didn't get the achievement, I don't have mods installed, and I've been getting other achievements just fine. Anyone know why this is? I'm on steam, and I haven't gotten the achievement in game or on steam itself.