Fixed #9731

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

@@ -189,6 +189,13 @@ public class StackConveyor extends Block implements Autotiler{
             Draw.rect(lastItem.fullIcon, Tmp.v1.x, Tmp.v1.y, size, size, 0);
         }
 
+        @Override
+        public void dropped(){
+            super.dropped();
+            var prev = Geometry.d4[(rotation + 2) % 4];
+            link = Point2.pack(tile.x + prev.x, tile.y + prev.y);
+        }
+
         @Override
         public void drawCracks(){
             Draw.z(Layer.block - 0.15f);

core/src/mindustry/world/blocks/payloads/PayloadLoader.java

@@ -12,6 +12,7 @@ import mindustry.graphics.*;
 import mindustry.type.*;
 import mindustry.ui.*;
 import mindustry.world.blocks.payloads.PayloadUnloader.*;
+import mindustry.world.blocks.sandbox.*;
 
 import static mindustry.Vars.*;
 
@@ -152,6 +153,7 @@ public class PayloadLoader extends PayloadBlock{
 
                 //load up items
                 if(payload.block().hasItems && items.any()){
+                    boolean acceptedAny = false;
                     if(efficiency > 0.01f && timer(timerLoad, loadTime / efficiency)){
                         //load up items a set amount of times
                         for(int j = 0; j < itemsLoaded && items.any(); j++){
@@ -162,6 +164,7 @@ public class PayloadLoader extends PayloadBlock{
                                     if(payload.build.acceptItem(payload.build, item)){
                                         payload.build.handleItem(payload.build, item);
                                         items.remove(item, 1);
+                                        acceptedAny = true;
                                         break;
                                     }else if(payload.block().separateItemCapacity || payload.block().consumesItem(item)){
                                         exporting = true;
@@ -171,6 +174,9 @@ public class PayloadLoader extends PayloadBlock{
                             }
                         }
                     }
+                    if(!acceptedAny){
+                        exporting = true;
+                    }
                 }
 
                 //load up liquids
@@ -180,8 +186,12 @@ public class PayloadLoader extends PayloadBlock{
                     float flow = Math.min(Math.min(liquidsLoaded * edelta(), payload.block().liquidCapacity - payload.build.liquids.get(liq)), total);
                     //TODO potential crash here
                     if(payload.build.acceptLiquid(payload.build, liq)){
-                        payload.build.liquids.add(liq, flow);
+                        if(!(payload.block() instanceof LiquidVoid)){
+                            payload.build.liquids.add(liq, flow);
+                        }
                         liquids.remove(liq, flow);
+                    }else{
+                        exporting = true;
                     }
                 }
 

core/src/mindustry/world/blocks/sandbox/LiquidVoid.java

@@ -24,6 +24,12 @@ public class LiquidVoid extends Block{
     }
 
     public class LiquidVoidBuild extends Building{
+        @Override
+        public void placed(){
+            super.placed();
+            liquids.clear();
+        }
+
         @Override
         public boolean acceptLiquid(Building source, Liquid liquid){
             return enabled;