My friends and I have noticed items we know for a fact we had have gone missing. Significant items like netherite and I even lost a stack of wither roses. (I know for a fact it wasn't Herobrine, due to him being removed in every update except 1.16)

I know there isn't a way to get them back because we don't enable cheats so we can get achievements, but I want this bug to be known so it can be prevented in the future for me and other players.

We did notice usually more common when returning to a backup save, but it still happens even when we don't sometimes, just not as often.