ALL WARNINGS FROM THE PREVIOUS POST STILL APPLY. THIS VERSION IS STILL BETA AND WILL NOT UPDATE PRE-1.13 REGIONS PERFECTLY.

This plugin has been updated to 1.13.1 and version 7.0.0 or newer of Worldedit that you can get here: http://builds.enginehub.org/job/worldedit/last-successful?branch=master

If you are using 1.12.2 or older, use the old worldedit jar and the 2.3.3 version of RollbackCore provided in the zip file.