Falling blocks crash game

When I mine sand,the blocks fall,but sometimes,they fall a bit and the game crashes. ~_{Creative and Survival modes}~
I have to restart the app.
What I expected to happen was...:
Sand falls normally,without crashing the game.
What actually happened was...:*
Describe what happened here

*Steps to Reproduce:
1. Go to any game mode or world.
2. Place a pillar of sand.
3. Break the bottom block.
4. Repeat this several times.
5. The game will crash.