Game crash leads to loss of items in shulker boxes/shulker boxes themselves.

Game crashed and everything saved perfectly from before the crash but if an item was placed into shulker box just before the crash or shulker box is broken just before crash the shulker box or item is lost entirely. Entire shulker box of iron was lost in my case. I placed it in ender chest a few mins before crash and it isn’t there or on the ground where it was last placed.