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Both Forge and Fabric versions of Regions Unexplored overwrite their farmlands' methods in a way that breaks Regions Unexplored compatibility. This mod fixes that since the 1.20.1 version is now abandoned
Most likely not happening. 1.21.1 version of Regions Unexplored is actively maintained, please ask the developer to implement compatibility. If they refuse, please create a github issue or join my discord server and ask me to update my patch