Shulker Boxes Disappears When Logging In Back to The World

Whenever I logging in to my world, my shulker boxes disappear and gone forever. All my loot from my shulker boxes are gone too.

Step To Reproduce:

1. Place a Shulker Boxes.
2. Logging Out of your world
3. Logging in and your Shulker Boxes should immediately gone

This bug not effect to minigames like a server, only effects on Singleplayer.