Unble to obain a certain achievement

My Xbox Live ID is Laozi124

 

I've completed 2050/2070 of the achievements. The one left seems buggy to me. It's called Body Guard by creating an iron golem. As far as i could remember, I've created over 30 iron golems in my survival main world with the default pumpkin, sheared pumpkin and the Jack o lantern. Additionally, i've started a new survival world, built a golem from sratch all over again but still unable to unlock that achievement