Fixed issue where the Crafter Manager can crash on invalid patterns. Fixes #2723

CHANGELOG.md

@@ -3,7 +3,8 @@
 ### 1.9.9
 
 - Fixed Refined Storage sidebuttons displaying over the JEI bookmark pagination buttons (raoulvdberge)
-- Fixed Issue where Crafters may fail to recognize an inventory/tank for some Patterns (Darkere) 
+- Fixed issue where Crafters may fail to recognize an inventory/tank for some patterns (Darkere) 
+- Fixed issue where the Crafter Manager can crash on invalid patterns (raoulvdberge)
 
 ### 1.9.8
 

src/main/java/com/refinedmods/refinedstorage/container/CrafterManagerContainer.java

@@ -120,6 +120,7 @@ public class CrafterManagerContainer extends BaseContainer {
 
                         visible = false;
 
+                        if (pattern.isValid()) {
                             for (ItemStack output : pattern.getOutputs()) {
                                 ItemGridStack outputConverted = new ItemGridStack(output);
 
@@ -132,6 +133,7 @@ public class CrafterManagerContainer extends BaseContainer {
                             }
                         }
                     }
+                }
 
                 addSlot(new CrafterManagerSlot(dummy, slot, x, y, visible, screenInfoProvider, crafterManager));