diff --git a/core/src/mindustry/entities/effect/MultiEffect.java b/core/src/mindustry/entities/effect/MultiEffect.java
index a969b3e440..a93c3bd276 100644
--- a/core/src/mindustry/entities/effect/MultiEffect.java
+++ b/core/src/mindustry/entities/effect/MultiEffect.java
@@ -25,8 +25,13 @@ public class MultiEffect extends Effect{
 
     @Override
     public void render(EffectContainer e){
+        int index = 0;
         for(Effect f : effects){
-            e.scaled(f.lifetime, f::render);
+            int i = ++index;
+            e.scaled(f.lifetime, cont -> {
+                cont.id = e.id + i;
+                f.render(cont);
+            });
             clip = Math.max(clip, f.clip);
         }
     }
diff --git a/core/src/mindustry/graphics/Shaders.java b/core/src/mindustry/graphics/Shaders.java
index 2b3ccefb46..8aa304065f 100644
--- a/core/src/mindustry/graphics/Shaders.java
+++ b/core/src/mindustry/graphics/Shaders.java
@@ -142,6 +142,10 @@ public class Shaders{
         }
     }
 
+    /** @deprecated transition class for mods; use UnitBuildShader instead. */
+    @Deprecated
+    public static class UnitBuild extends UnitBuildShader{}
+
     public static class UnitBuildShader extends LoadShader{
         public float progress, time;
         public Color color = new Color();
diff --git a/gradle.properties b/gradle.properties
index e52e016fb3..e33614b1b9 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xms256m -Xmx1024m
-archash=72dd3ba5d27fddfbf52719c10738d790e129e5db
+archash=f49f7c824adc556cba6b94579c6b0d4e24574b3e