FAWE restricts WorldEdit for players to region if Settings.REGION_RESTRICTIONS=true
Settings.REGION_RESTRICTIONS
true
FaweAPI.addMaskManager(new PlotSquaredFeature());
See:
This Wiki is for Legacy Versions (1.8 - 1.12.2). Check here for 1.13+ versions: https://github.com/IntellectualSites/FastAsyncWorldEdit-Documentation/
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