should fix ICraftingStep#onReceiveOutput, #528

src/main/java/com/raoulvdberge/refinedstorage/api/autocrafting/task/ICraftingStep.java

@@ -72,8 +72,11 @@ public interface ICraftingStep {
     boolean hasReceivedOutput(ItemStack stack);
 
     /**
+     * The {@link ItemStack} given to it will be changed and contain the remainder
+     * The return value will only be true if the stack size is zero
+     *
      * @param stack the stack that was inserted in the storage system
-     * @return true if this item belonged to the processable item, false otherwise
+     * @return true if this item belonged to the processable item and was fully used, false otherwise
      */
     boolean onReceiveOutput(ItemStack stack);
 

src/main/java/com/raoulvdberge/refinedstorage/apiimpl/autocrafting/task/CraftingStep.java

@@ -123,14 +123,18 @@ public abstract class CraftingStep implements ICraftingStep {
             }
             if (API.instance().getComparer().isEqual(stack, output, CraftingTask.DEFAULT_COMPARE | (getPattern().isOredict() ? IComparer.COMPARE_OREDICT : 0))) {
                 if (received < output.stackSize) {
-                    satisfied.put(hashcode, received + stack.stackSize);
+                    int toReceive = Math.min(output.stackSize - received, stack.stackSize);
+                    satisfied.put(hashcode, received + toReceive);
+                    stack.stackSize -= toReceive;
 
                     network.sendCraftingMonitorUpdate();
 
+                    if (stack.stackSize == 0) {
                         return true;
                     }
                 }
             }
+        }
 
         return false;
     }

src/main/java/com/raoulvdberge/refinedstorage/tile/TileController.java

@@ -553,10 +553,11 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
 
         if (!simulate && inserted > 0 && accessType != AccessType.WRITE) {
             itemStorage.add(ItemHandlerHelper.copyStackWithSize(stack, inserted), false);
+            ItemStack checkSteps = ItemHandlerHelper.copyStackWithSize(stack, inserted);
 
             for (ICraftingTask task : craftingTasks) {
                 for (ICraftingStep processable : task.getSteps()) {
-                    if (processable.onReceiveOutput(stack)) {
+                    if (processable.onReceiveOutput(checkSteps)) {
                         return remainder;  // All done
                     }
                 }