Currently running paperspigot 1.13.2 and I can not find a build for fawe and world edit that work together and that recognizes worldguard regions. If anyone can solve this issue I'll give you $10. I tried contacting fawe devs and no luck.
Please post a screenshot of your plugins folder. Make sure you're using worldguard V 7.0.0As in worldguard does not even pop up /rg does not work
Royalsmith
