Bukkit

Version 2.0 Build #203
https://diabloplugins.ci.cloudbees.com/job/DiabloDrops/203/
Fix- Tomes Identify Everytime
Fix- Leech effect works reversal all the time
Fix- Skulls not being able to socket items
Added- Skulls owner itemname
Added- Sets
Fix- Configurable Random Damage applied to drop
Added- Three new ruins
Added- Option for Tier name in Lore
Fix- Spawned Items Vanishing
Fix- SafeEnchants Completely
Fix- Bow/Identify/Socket/Dropchance
Adjusted- Defensive/Offensive/SetBonus Lore Types
Change- Tier.yml Tiers have their own file
Added- Useful commands
Tested/Built Against 1.4.5-R0.2

As always check your configuration for updates. Alot of your options may have changed.
https://github.com/deathmarine/DiabloDrops/issues/29
This is a known issue. However since the items act as normal it shouldn't be a problem. You still have to acquire the socket gem and with that gain additional gems to make more socket gems. Which really doesn't really affect the way it acts or gives them items, it just adds the lore information.