[1.7.10] [UNSOLVED] Slots & NBT

public void importMoneyFromInput(EntityPlayer player)
    {
        double val = 0;
        ItemStack input = atmSlots[0];
        if ( input != null )
        {
            if ( input.getItem() instanceof ItemNote )
            {
                val = ((ItemNote) input.getItem()).getValue()*input.stackSize;
            }
            else if ( input.getItem() instanceof ItemCoin )
            {
                val = ((ItemCoin) input.getItem()).getValue()*input.stackSize;
            }
        }

        double lastVal = player.getEntityData().getDouble("bankBalance");
        player.getEntityData().setDouble("bankBalance", val + lastVal);

        atmSlots[0] = null;
        this.onInventoryChanged = true;
    }

    public void exportMoneyFromBuffer (ATMHelper helper, EntityPlayer player)
    {
        helper.updateOutput();

        atmSlots[2] = (ModMoneyHelper.createFullBriefcase(toPutOut_is)).copy();

        double oldVal = player.getEntityData().getDouble("bankBalance");
        double remove = helper.getValueOutput();

        player.getEntityData().setDouble("bankBalance", oldVal-remove);

        helper.reset();
        this.onInventoryChanged = true;
    }

(

    this.onInventoryChnaged = true causes this.markDirty()

)

this.bankBalance = player.getEntityData().getDouble("bankBalance");

this.player.getEntityData().setDouble("bankBalance", this.bankBalance);