Put the summary of the bug you're having here

What I expected to happen was...:
Play Minecraft normally

What actually happened was...:
All blocks and chunks disappear after successfully breaking a block except for mobs, lava, and water.

Steps to Reproduce:
1. i would load a world
2. break a piece of dirt
3. everything disappears

This is probably just specific to me but it sucks because i can not play. I want to know why this is happening and how to fix it. The same thing happens on servers and on the latest snapshot. I also play with the Technic launcher. On it all mod packs work accept for the vanilla where the same thing would occur. Below are screenshots of it happening. The first one is once the game loads. The second one is the same view but after breaking a block. the third one is to show what all still loads: lava, water, and mobs. I noticed this after downloading the Sphax PureBDCraft. even after i took it off the problem kept occurring. Please help.