WORLDEDIT-3895 - Reported by CloudeLecaw

[00:42:04] [Server thread/INFO]: Cloude_Lecaw issued server command: //regen
[00:42:04] [Server thread/WARN]: Chunk generation via Bukkit raised an error
java.lang.UnsupportedOperationException: Not supported in this Minecraft version! Unless you can fix it, this is not a bug :)
at org.bukkit.craftbukkit.v1_14_R1.CraftWorld.regenerateChunk(CraftWorld.java:400) ~[spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at com.sk89q.worldedit.bukkit.BukkitWorld.regenerate(BukkitWorld.java:182) ~[?:?]
at com.sk89q.worldedit.command.RegionCommands.regenerateChunk(RegionCommands.java:367) ~[?:?]
at com.sk89q.worldedit.command.RegionCommandsRegistration._regen(RegionCommandsRegistration.java:560) ~[?:?]
at org.enginehub.piston.CommandManager.execute(CommandManager.java:154) ~[?:?]
at com.sk89q.worldedit.extension.platform.PlatformCommandManager.handleCommand(PlatformCommandManager.java:498) ~[?:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_212]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_212]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_212]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_212]
at com.sk89q.worldedit.util.eventbus.MethodEventHandler.dispatch(MethodEventHandler.java:58) ~[?:?]
at com.sk89q.worldedit.util.eventbus.EventHandler.handleEvent(EventHandler.java:73) ~[?:?]
at com.sk89q.worldedit.util.eventbus.EventBus.dispatch(EventBus.java:187) ~[?:?]
at com.sk89q.worldedit.util.eventbus.EventBus.post(EventBus.java:173) ~[?:?]
at com.sk89q.worldedit.bukkit.WorldEditPlugin.onCommand(WorldEditPlugin.java:303) ~[?:?]
at com.sk89q.bukkit.util.DynamicPluginCommand.execute(DynamicPluginCommand.java:55) ~[?:?]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149) ~[spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchCommand(CraftServer.java:707) ~[spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.PlayerConnection.handleCommand(PlayerConnection.java:1666) ~[spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1506) ~[spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) ~[spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:13) ~[spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) [spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(SourceFile:135) [spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(SourceFile:114) [spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.MinecraftServer.aW(MinecraftServer.java:896) [spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:889) [spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.awaitTasks(SourceFile:123) [spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:873) [spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:806) [spigot-1.14.jar:git-Spigot-1eece4f-84400e6]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_212]