I have interesting bug that I have experienced before but has gone away on its own. This one is not going away though.
I have a giant stripe or chunks missing from my desert biome, I would say probably 7 chunks long.
I'm guessing the chunks are corrupted or something, what was hoping to figure is whether it can repaired or reverted.
Here is a picture of the problem.
Best Answer
Reload your chunks
Press F3 + A
There is no step 2
failing that...
Reload Minecraft
Close Minecraft
Reopen Minecraft
failing that...
Use MCEdit.
Backup your world
Close Minecraft
Open the world in MCEdit
Using the chunk tool, completely delete the missing chunks
Save and close MCEdit
Reopen Minecraft and it will regenerate the missing chunks