NZ GST sales tax not added in totals at Checkout

Hi, I have just upgraded to Jigoshop eCommerce 2.

So far mostly good but I have not had any real sales through, just some tests.

I have my tax settings correct, however when I first get to the checkout, its not showing the TOTALS correctly with the SUBTOTAL and TOTAL but not tax included, however if you accept the order with “Purchase and Pay” then it shows the tax and recalculates the TOTAL correctly.

I have checked all the necessary country and tax settings and nothing fixes this, I suspect its a sort of bug ?

Pretty important to resolve my busy sales period is starting soon.

Thanks
Richard Harcourt