Hey,

may you notice the 1.8 Update by Spigot: http://www.spigotmc.org/threads/bukkit-craftbukkit-spigot-1-8.36598/ and the WorldEdit 6 Version http://dev.bukkit.org/bukkit-plugins/worldedit/files/60-world-edit-6-0/

MagicCarpet dont work with this versions. Thanks. Hope to see an Update may soon?