A BUG

so hi i my account name is:SneakyPizza but i am having some problen that is when i play miniblox than any armur i wear i see everyone have it like i am armurless so if anyone hit me 4-5 times i will die but when i have no armur than i see every has armur but when i wear armur again than i see every have armur and you pls fix pls