Certain members on my server have lost the ability to use commands. Initially it began that all regular commands were broken, yet worldedit commands using double-slashes still worked. Now all commands are broken for this user. They receive no warning of command not recognized, player doesn't have permission, nor any sign that the server received the command at all. They still can interact with blocks and the worldedit wand itself still works and so does chat, but no commands at all.