Ender Chest Disappears

When I quit the game and start it again, my Ender Chest disappeared.

What I expected to happen was that the Ender Chest remained after I started the game again.

What actually happened was that the Ender Chest disappeared.

Steps to Reproduce:
1. Place Ender Chest
2. Quit game
3. Open world again
4. Ender Chest disappears