Fixed #9449

core/src/mindustry/world/blocks/distribution/StackRouter.java

@@ -61,6 +61,11 @@ public class StackRouter extends DuctRouter{
             if((current == null || items.get(current) == 0) && items.total() > 0){
                 current = items.first();
             }
+
+            if(items.empty()){
+                unloading = false;
+                current = null;
+            }
         }
 
         @Override

gradle.properties

@@ -25,4 +25,4 @@ org.gradle.caching=true
 #used for slow jitpack builds; TODO see if this actually works
 org.gradle.internal.http.socketTimeout=100000
 org.gradle.internal.http.connectionTimeout=100000
-archash=e5a3dd82b8
+archash=8fdcdbfccc