Upon disconecting from other players' worlds, items such as Diamonds and stacks upon, stacks of iron have disappeared when returning to that world later on. I have tried looking for anyone else who have experienced these problems but found nothing. The strange part about this bug is that it only deletes paticular items; for example, diamonds, Gapples ( golden apples) and in this case, 3 stacks of iron ingots. As well as deleting items from my hotbar and inventory, items were deleted from my corpse where I had died. Me and my friend were joking around on his world and started to kill eachother. I killed him first and then he came and killed me. However when I died, the only items of mine that were to be found was my enchanted diamond armour. I had a full inventory mostly consisting of enchantment books and diamond tools as I had previously gone to enchant them on an anvil but got distracted. That entire inventory and hotbar of precious items were gone, and I was going to use these items to defeat the ender dragon and fully unlock all of the achievements. I am incredibly agitated and just want to make sure this bug is fixed and does not occur in the future for me or anyone else in the minecraft community.