After updating from 3.2 BETA to 3.2, the WorldGuard checkbox in the Layers menu does nothing, this is observed when 3d region display is turned on. When the Dynmap-worldguard config has use3dregions set to false, everything works normal, regions are displayed correctly. My conclusion is that in 3.2 and 3.2.1, use3dregions is broken. Thanks!