After updating 1.8-pre1 to 1.8-pre2 I got some problems with chunk loading.
Some of the chunks just never get loaded. It spreads like a disease, more an more chunks get corrupted with every server-restart.
Downgrading to 1.7.10 did not fix the missing chunks, so this bug probably corrupts the world files.
Server-log and Screenshot of the issue included.
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Temporary fix: Tried it 3 more times with my backup, third one has no problems.
I wish Mojang would let us know if they can fix this problem. I don't want to invest more work in my world if its permanently corrupted. My lost chunk is in the middle of my spawn area. HELP!