Dungeons that are created in several of the recent development snapshots come without chests 100% of the time. To test this, you can create a world in 1.7 and find a dungeon that has at least one loot chest in it. Then, write down the coordinates and create a new world with the same seed in any version from 14w05b to 14w06b and travel to those coordinates. Even if the dungeon has chests in the 1.7 created world, it will not in a world created in the recent snapshots.
MC-48099
Dungeons generated in versions 14w04b to 14w06b do not contain chests at all.
Resolved
Duplicate
0
(Unassigned)
Unconfirmed
Minecraft 14w05b, Minecraft 14w06a, Minecraft 14w06b
Retrieved
Duplicate of MC-45773 - 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.