diff --git a/android/src/mindustry/android/AndroidRhinoContext.java b/android/src/mindustry/android/AndroidRhinoContext.java
index 7a45b1b11d..1b845d61cf 100644
--- a/android/src/mindustry/android/AndroidRhinoContext.java
+++ b/android/src/mindustry/android/AndroidRhinoContext.java
@@ -13,7 +13,6 @@ import com.android.dx.dex.cf.*;
 import com.android.dx.dex.file.DexFile;
 import com.android.dx.merge.*;
 import dalvik.system.*;
-import mindustry.*;
 import mindustry.mod.*;
 import rhino.*;
 
@@ -67,9 +66,6 @@ public class AndroidRhinoContext{
         protected Context makeContext(){
             Context ctx = super.makeContext();
             ctx.setClassShutter(Scripts::allowClass);
-            if(Vars.mods != null){
-                ctx.setApplicationClassLoader(Vars.mods.mainLoader());
-            }
             return ctx;
         }
 
diff --git a/core/src/mindustry/core/Platform.java b/core/src/mindustry/core/Platform.java
index e953497420..ff139fa14a 100644
--- a/core/src/mindustry/core/Platform.java
+++ b/core/src/mindustry/core/Platform.java
@@ -7,7 +7,6 @@ import arc.math.*;
 import arc.struct.*;
 import arc.util.*;
 import arc.util.serialization.*;
-import mindustry.*;
 import mindustry.mod.*;
 import mindustry.net.*;
 import mindustry.net.Net.*;
@@ -85,9 +84,6 @@ public interface Platform{
             protected Context makeContext(){
                 Context ctx = super.makeContext();
                 ctx.setClassShutter(Scripts::allowClass);
-                if(Vars.mods != null){
-                    ctx.setApplicationClassLoader(Vars.mods.mainLoader());
-                }
                 return ctx;
             }
         });
diff --git a/core/src/mindustry/mod/ModClassLoader.java b/core/src/mindustry/mod/ModClassLoader.java
index 89a76e5714..40d6fd07ef 100644
--- a/core/src/mindustry/mod/ModClassLoader.java
+++ b/core/src/mindustry/mod/ModClassLoader.java
@@ -4,7 +4,12 @@ import arc.struct.*;
 
 public class ModClassLoader extends ClassLoader{
     private Seq<ClassLoader> children = new Seq<>();
-    private volatile boolean inChild = false;
+    private ThreadLocal<Boolean> inChild = new ThreadLocal<>(){
+        @Override
+        protected Boolean initialValue(){
+            return Boolean.FALSE;
+        }
+    };
 
     public void addChild(ClassLoader child){
         children.add(child);
@@ -13,21 +18,25 @@ public class ModClassLoader extends ClassLoader{
     @Override
     protected Class<?> findClass(String name) throws ClassNotFoundException{
         //a child may try to delegate class loading to its parent, which is *this class loader* - do not let that happen
-        if(inChild) throw new ClassNotFoundException(name);
+        if(inChild.get()){
+            inChild.set(false);
+            throw new ClassNotFoundException(name);
+        }
 
         ClassNotFoundException last = null;
         int size = children.size;
+
+        inChild.set(true);
         //if it doesn't exist in the main class loader, try all the children
         for(int i = 0; i < size; i++){
             try{
-                inChild = true;
-                var out = children.get(i).loadClass(name);
-                inChild = false;
-                return out;
+                return children.get(i).loadClass(name);
             }catch(ClassNotFoundException e){
                 last = e;
             }
         }
+        inChild.set(false);
+
         throw (last == null ? new ClassNotFoundException(name) : last);
     }
 }
diff --git a/core/src/mindustry/world/blocks/power/ImpactReactor.java b/core/src/mindustry/world/blocks/power/ImpactReactor.java
index adf46ace7d..d692699100 100644
--- a/core/src/mindustry/world/blocks/power/ImpactReactor.java
+++ b/core/src/mindustry/world/blocks/power/ImpactReactor.java
@@ -40,6 +40,8 @@ public class ImpactReactor extends PowerGenerator{
         hasItems = true;
         outputsPower = consumesPower = true;
         flags = EnumSet.of(BlockFlag.reactor, BlockFlag.generator);
+        lightRadius = 115f;
+        emitLight = true;
     }
 
     @Override
diff --git a/core/src/mindustry/world/draw/DrawSmelter.java b/core/src/mindustry/world/draw/DrawSmelter.java
index 5b4880eba9..9402ecbd75 100644
--- a/core/src/mindustry/world/draw/DrawSmelter.java
+++ b/core/src/mindustry/world/draw/DrawSmelter.java
@@ -25,6 +25,7 @@ public class DrawSmelter extends DrawBlock{
     @Override
     public void load(Block block){
         top = Core.atlas.find(block.name + "-top");
+        block.clipSize = Math.max(block.clipSize, (lightRadius + lightSinMag) * 2f * block.size);
     }
 
     @Override