Bukkit

I highly recommend that you update to B-1.5.2-beta ASAP. It has important fixes regarding inventory GUIs.

Changelog:

• [Fix] Hopefully removed the NullPointerException in /compass menus.
• [Fix] Inventory bug that allows you to put item inside the GUI and lose them because you can't get them back.
• [Improve] /compass trk pl <player> now search for closest matching player.
• [Improve] Fixed PlaceholderAPI implementations. Enable by bleeding-edge node in config.yml.

There is a documentation in progress for the plugin now! Check it out at: https://github.com/Hexragon/Compassance/wiki