Bukkit

05.15:

• Patched bugs: - "Invisible items" bug, where players would still "have" their item even after they auctioned it. When they right-click it, it disappears, but you were still able to get unlimited exp-bottles.

05.25:

• Patched bugs: - The language file was not completed and anyone who bid and won would not get their items because of a break (missing string in the language.yml)

None as of yet. I tried patching as many as I could.

If you find any please create a ticket.