public void onGuiClosed() { super.onGuiClosed(); if (this.mc.thePlayer != null) { for (ItemStack itemStack : this.mc.thePlayer.inventory.mainInventory) { if (itemStack != null) { if (NBTHelper.hasTag(itemStack, Strings.NBT_ITEM_TRANS_GUI_OPEN)) { NBTHelper.removeTag(itemStack, Strings.NBT_ITEM_TRANS_GUI_OPEN); } } } } }