Hello! I have killed numerous monsters as I have played and have yet to get this achievement. I do not know if you have to kill them a certain way, but I have killed all but the spider jockey. Any idea on what is going on? Is this a bug? Or am I doing something wrong? Thank you
Achievement / Avatar Awards Not unlocking(SEVERE) [S-07] [U-05]
One possible cause is that the achievement is unlocked by somebody you are splitscreening with. Until this gets a patch, here is a solution one user posted:
You can fix the problem by resetting your Minecraft stats. Here's how:
1. Put your GamerTag/Profile on a USB/Memory Card.
2. Log in to Xbox Live.
3. Launch Minecraft.
4. At the 4J Studios screen, pull the USB stick.
5. Your xbox will tell you to put the card back in, don't yet.
6. Pick play Game (you should get an error about not being able to load your profile). continue.
7. Once in the game, put your USB back in the system.
8. Pause and Exit. Will ask you if you want to save -- I picked yes, though I doubt this matters.
9. Log back in to LIVE (pulling your USB should have logged you out).
10. Perform the action you need to get an achievement -- it should pop.
Aside from Achievements NOT unlocking, there are also players who have unlocked achievements by doing nothing at all.
^ Straight from the bug thread/topic located on the top of this forum. Hope this helped.