diff --git a/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/ChunkSnapshot.java b/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/ChunkSnapshot.java
index 6382e98e..a275da19 100644
--- a/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/ChunkSnapshot.java
+++ b/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/ChunkSnapshot.java
@@ -4,6 +4,7 @@ import java.util.Arrays;
 
 import org.dynmap.renderer.DynmapBlockState;
 import org.dynmap.utils.DataBitsPacked;
+import org.dynmap.Log;
 
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.ListTag;
diff --git a/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/DynmapPlugin.java b/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/DynmapPlugin.java
index 2f4d28eb..e71f7bef 100644
--- a/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/DynmapPlugin.java
+++ b/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/DynmapPlugin.java
@@ -1343,13 +1343,13 @@ public class DynmapPlugin
     /* Handler for generic console command sender */
     public class ForgeCommandSender implements DynmapCommandSender
     {
-        private CommandSource sender;
+        private CommandSourceStack sender;
 
         protected ForgeCommandSender() {
         	sender = null;
         }
 
-        public ForgeCommandSender(CommandSource send)
+        public ForgeCommandSender(CommandSourceStack send)
         {
             sender = send;
         }
@@ -1365,7 +1365,7 @@ public class DynmapPlugin
         {
         	if(sender != null) {
                 TextComponent ichatcomponent = new TextComponent(msg);
-                sender.sendMessage(ichatcomponent, Util.NIL_UUID);
+                sender.sendSuccess(ichatcomponent, true);
         	}
         }
 
@@ -1396,13 +1396,13 @@ public class DynmapPlugin
             if(bb != null) {
                 String id = bb.toString();
                 float tmp = bb.getBaseTemperature(), hum = bb.getDownfall();
-                int watermult = bb.getWaterColor();
-                Log.verboseinfo("biome[" + i + "]: hum=" + hum + ", tmp=" + tmp + ", mult=" + Integer.toHexString(watermult));
+                int watermult = bb.getWaterColor() | 0xFF000000;
+                Log.info("biome[" + i + "]: hum=" + hum + ", tmp=" + tmp + ", mult=" + Integer.toHexString(watermult));
 
                 BiomeMap bmap = BiomeMap.byBiomeID(i);
                 if (bmap.isDefault()) {
                     bmap = new BiomeMap(i, id, tmp, hum);
-                    Log.verboseinfo("Add custom biome [" + bmap.toString() + "] (" + i + ")");
+                    Log.info("Add custom biome [" + bmap.toString() + "] (" + i + ")");
                     cnt++;
                 }
                 else {
@@ -1411,7 +1411,7 @@ public class DynmapPlugin
                 }
                 if (watermult != -1) {
                     bmap.setWaterColorMultiplier(watermult);
-                	Log.verboseinfo("Set watercolormult for " + bmap.toString() + " (" + i + ") to " + Integer.toHexString(watermult));
+                	Log.info("Set watercolormult for " + bmap.toString() + " (" + i + ") to " + Integer.toHexString(watermult));
                 }
             }
         }
@@ -1435,7 +1435,6 @@ public class DynmapPlugin
     {
         /* Get MC version */
         String mcver = server.getServerVersion();
-
         /* Load extra biomes */
         loadExtraBiomes(mcver);
         /* Set up player login/quit event handler */
@@ -1605,7 +1604,7 @@ public class DynmapPlugin
         }
         else
         {
-            dsender = new ForgeCommandSender();
+            dsender = new ForgeCommandSender(commandSourceStack);
         }
         try {
         	core.processCommand(dsender, cmd, cmd, args);
diff --git a/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/ForgeWorld.java b/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/ForgeWorld.java
index 7dcfcb7f..9850a1ab 100644
--- a/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/ForgeWorld.java
+++ b/forge-1.17.1/src/main/java/org/dynmap/forge_1_17_1/ForgeWorld.java
@@ -8,9 +8,9 @@ import net.minecraft.world.level.ServerLevelAccessor;
 import net.minecraft.world.level.border.WorldBorder;
 import net.minecraft.world.level.levelgen.Heightmap;
 import net.minecraft.core.BlockPos;
+import net.minecraft.resources.ResourceKey;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.level.Level;
-import net.minecraft.world.level.LevelAccessor;
 import net.minecraft.world.level.LightLayer;
 
 import org.dynmap.DynmapChunk;
@@ -18,6 +18,7 @@ import org.dynmap.DynmapLocation;
 import org.dynmap.DynmapWorld;
 import org.dynmap.utils.MapChunkCache;
 import org.dynmap.utils.Polygon;
+import org.dynmap.Log;
 
 public class ForgeWorld extends DynmapWorld
 {
@@ -37,16 +38,26 @@ public class ForgeWorld extends DynmapWorld
     }
 
     public static String getWorldName(ServerLevelAccessor w) {
-    	return w.getLevel().serverLevelData.getLevelName();
+        ResourceKey<Level> rk = w.getLevel().dimension();
+        if (rk == Level.OVERWORLD) {    // Overworld?
+            return w.getLevel().serverLevelData.getLevelName();
+        } else if (rk == Level.END) {
+            return "DIM1";
+        } else if (rk == Level.NETHER) {
+            return "DIM-1";
+        } else {
+            return rk.getRegistryName() + "_" + rk.location();
+        }
     }
 
     public ForgeWorld(ServerLevelAccessor w)
     {
-        this(getWorldName(w), w.getLevel().getHeight(), 
+        this(getWorldName(w), 
+        	w.getLevel().getHeight(), 
     		w.getLevel().getSeaLevel(), 
     		w.getLevel().dimension() == Level.NETHER,
     		w.getLevel().dimension() == Level.END,
-			w.getLevel().serverLevelData.getLevelName());
+			getWorldName(w));
         setWorldLoaded(w);
     }
     public ForgeWorld(String name, int height, int sealevel, boolean nether, boolean the_end, String deftitle)
@@ -70,7 +81,7 @@ public class ForgeWorld extends DynmapWorld
         {
             env = "normal";
         }
-        
+        Log.info(getName() + ": skylight=" + skylight + ", height=" + this.worldheight + ", isnether=" + isnether + ", istheend=" + istheend);
     }
     /* Test if world is nether */
     @Override
@@ -141,7 +152,9 @@ public class ForgeWorld extends DynmapWorld
     	this.sealevel = w.getLevel().getSeaLevel();   // Read actual current sealevel from world
     	// Update lighting table
     	for (int i = 0; i < 16; i++) {
-    	    this.setBrightnessTableEntry(i, w.getLevel().dimensionType().brightness(i));
+    		float light = w.getLevel().dimensionType().brightness(i);
+    	    this.setBrightnessTableEntry(i, light);
+    	    Log.info(getName() + ": light " + i + " = " + light);
     	}
     }
     /* Get light level of block */