Program: 79929
Project: 79929
Buggy source:
public AContainer(Category category,ItemStack item,String id,RecipeType recipeType,ItemStack[] recipe,ItemStack recipeOutput){
  super(category,item,id,recipeType,recipe,recipeOutput);
  new BlockMenuPreset(id,getInventoryTitle()){
    @Override public void init(){
      constructMenu(this);
    }
    @Override public void newInstance(    BlockMenu menu,    Block b){
    }
    @Override public boolean canOpen(    Block b,    Player p){
      return p.hasPermission("String_Node_Str") || CSCoreLib.getLib().getProtectionManager().canAccessChest(p.getUniqueId(),b,true);
    }
    @Override public int[] getSlotsAccessedByItemTransport(    ItemTransportFlow flow){
      if (flow.equals(ItemTransportFlow.INSERT))       return getInputSlots();
 else       return getOutputSlots();
    }
  }
;
  registerBlockHandler(id,new SlimefunBlockHandler(){
    @Override public void onPlace(    Player p,    Block b,    SlimefunItem item){
    }
    @Override public boolean onBreak(    Player p,    Block b,    SlimefunItem item,    UnregisterReason reason){
      for (      int slot : getInputSlots()) {
        if (BlockStorage.getInventory(b).getItemInSlot(slot) != null)         b.getWorld().dropItemNaturally(b.getLocation(),BlockStorage.getInventory(b).getItemInSlot(slot));
      }
      for (      int slot : getOutputSlots()) {
        if (BlockStorage.getInventory(b).getItemInSlot(slot) != null)         b.getWorld().dropItemNaturally(b.getLocation(),BlockStorage.getInventory(b).getItemInSlot(slot));
      }
      processing.remove(b);
      progress.remove(b);
      return true;
    }
  }
);
  this.registerDefaultRecipes();
}

Fixed version (ground truth):
public AContainer(Category category,ItemStack item,String id,RecipeType recipeType,ItemStack[] recipe,ItemStack recipeOutput){
  super(category,item,id,recipeType,recipe,recipeOutput);
  new BlockMenuPreset(id,getInventoryTitle()){
    @Override public void init(){
      constructMenu(this);
    }
    @Override public void newInstance(    BlockMenu menu,    Block b){
    }
    @Override public boolean canOpen(    Block b,    Player p){
      return p.hasPermission("String_Node_Str") || CSCoreLib.getLib().getProtectionManager().canAccessChest(p.getUniqueId(),b,true);
    }
    @Override public int[] getSlotsAccessedByItemTransport(    ItemTransportFlow flow){
      if (flow.equals(ItemTransportFlow.INSERT))       return getInputSlots();
 else       return getOutputSlots();
    }
  }
;
  registerBlockHandler(id,new SlimefunBlockHandler(){
    @Override public void onPlace(    Player p,    Block b,    SlimefunItem item){
    }
    @Override public boolean onBreak(    Player p,    Block b,    SlimefunItem item,    UnregisterReason reason){
      for (      int slot : getInputSlots()) {
        if (BlockStorage.getInventory(b).getItemInSlot(slot) != null) {
          b.getWorld().dropItemNaturally(b.getLocation(),BlockStorage.getInventory(b).getItemInSlot(slot));
          BlockStorage.getInventory(b).replaceExistingItem(slot,null);
        }
      }
      for (      int slot : getOutputSlots()) {
        if (BlockStorage.getInventory(b).getItemInSlot(slot) != null) {
          b.getWorld().dropItemNaturally(b.getLocation(),BlockStorage.getInventory(b).getItemInSlot(slot));
          BlockStorage.getInventory(b).replaceExistingItem(slot,null);
        }
      }
      processing.remove(b);
      progress.remove(b);
      return true;
    }
  }
);
  this.registerDefaultRecipes();
}