I updated my single player from 14w11b to the 1.7.6pre-2 release, and when opening my world all of my items were missing. I had opened mc in the 14w11b snapshot and remembered that there was a more recent version out. My items were not missing in the earlier snapshot. I checked my chests in the 1.7.6 release and the items were missing there as well.
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Ezekiel
migrated
had searched for the issue and couldn't find it. sorry!
Ezekiel
Ok, that's fine so long as you tried.
Duplicate of MC-45009 - If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
1.7.6-pre2 is below 14w11b on the list, and isn't selected when you use 'Latest Version'.