diff --git a/core/src/mindustry/content/Blocks.java b/core/src/mindustry/content/Blocks.java
index 8b52cf3350..5a35f31d1d 100644
--- a/core/src/mindustry/content/Blocks.java
+++ b/core/src/mindustry/content/Blocks.java
@@ -637,6 +637,8 @@ public class Blocks implements ContentList{
             hasPower = true;
             hasLiquids = false;
             drawer = new DrawSmelter(Color.valueOf("ffef99"));
+            ambientSound = Sounds.smelter;
+            ambientSoundVolume = 0.07f;
 
             consumes.items(with(Items.coal, 1, Items.sand, 2));
             consumes.power(0.50f);
@@ -653,6 +655,8 @@ public class Blocks implements ContentList{
             itemCapacity = 30;
             boostScale = 0.15f;
             drawer = new DrawSmelter(Color.valueOf("ffef99"));
+            ambientSound = Sounds.smelter;
+            ambientSoundVolume = 0.07f;
 
             consumes.items(with(Items.coal, 4, Items.sand, 6, Items.pyratite, 1));
             consumes.power(4f);
@@ -684,6 +688,8 @@ public class Blocks implements ContentList{
             size = 2;
             hasPower = hasItems = true;
             drawer = new DrawSmelter(Color.valueOf("ffc099"));
+            ambientSound = Sounds.smelter;
+            ambientSoundVolume = 0.07f;
 
             consumes.items(with(Items.lead, 1, Items.sand, 1));
             consumes.power(0.60f);
diff --git a/core/src/mindustry/maps/filters/SpawnPathFilter.java b/core/src/mindustry/maps/filters/SpawnPathFilter.java
index 09d453e513..0495baa839 100644
--- a/core/src/mindustry/maps/filters/SpawnPathFilter.java
+++ b/core/src/mindustry/maps/filters/SpawnPathFilter.java
@@ -31,7 +31,7 @@ public class SpawnPathFilter extends GenerateFilter{
 
     @Override
     public void apply(Tiles tiles, GenerateInput in){
-        Tile core = null;
+        var cores = new Seq<Tile>();
         var spawns = new Seq<Tile>();
 
         for(Tile tile : tiles){
@@ -39,11 +39,11 @@ public class SpawnPathFilter extends GenerateFilter{
                 spawns.add(tile);
             }
             if(tile.block() instanceof CoreBlock && tile.team() != Vars.state.rules.waveTeam){
-                core = tile;
+                cores.add(tile);
             }
         }
 
-        if(core != null && spawns.any()){
+        for(var core : cores){
             for(var spawn : spawns){
                 var path = Astar.pathfind(core.x, core.y, spawn.x, spawn.y, t -> t.solid() ? 100 : 1, Astar.manhattan, tile -> !tile.floor().isDeep());
                 for(var tile : path){
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 05679dc3c1..ffed3a254e 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.1.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/tools/src/mindustry/tools/Generators.java b/tools/src/mindustry/tools/Generators.java
index b1468997f2..416656cd33 100644
--- a/tools/src/mindustry/tools/Generators.java
+++ b/tools/src/mindustry/tools/Generators.java
@@ -380,7 +380,7 @@ public class Generators{
                     base.each((x, y) -> tint.setRaw(x, y, Color.muli(tint.getRaw(x, y), stat.color.rgba())));
 
                     //outline the image
-                    Pixmap container = new Pixmap(38, 38);
+                    Pixmap container = new Pixmap(tint.width + 6, tint.height + 6);
                     container.draw(base, 3, 3, true);
                     base = container.outline(Pal.gray, 3);
                 }