Edit: Has been solved long time ago. Hello there, I have discovered a serious bug with WG builds at http://builds.enginehub.org/job/worldedit?branch=string-ids. I have tried the latest build #3797 (edit build #1723) and replicated the bug on several servers. People with malicious intent can completely destroy servers with this bug. I will therefore not explain the bug publicly. I am not sure how to contact the developers, please help me with this so they can fix this ASAP. I would advise not using WG 1.13 builds while this bug has not been fixed yet. I thought this would be reasonable to share as it is quite an essential plugin and I've seen many 1.13 production servers vulnerable to this bug.