Completely random loading error that kills you and deletes all your items in your inventory

On nintendo switch, I was in the home menu with minecraft open but when i opened up minecraft again, it drained all my health and killed me where I was standing but instead of dropping the items like normal, it deleted all of them instantly. This could be a loading error of some kind but it is definetly very strange being killed for no reason while just standing g there. It is a very devastating bug especially for someone with very valuable gear and items but luckily all my stuff is easily replaceable. This bug should be fixed ASAP.