Windows 7, NVIDIA graphics card
If you destroy the final block model in a 16 3 chunk, it becomes a ghost block until you either add a block model back into the chunk or use F3 + A.
Block models are all blocks except chests, ender chests, signs, and barriers.
Steps to reproduce:
- Fly into the air until you are at least 16 blocks above all terrain
- Use the command /setblock ~ ~ ~ stone
- Break the stone block, notice it still renders
- Press F3 + A, notice it disappears