VAT PAYMENTS

All our inputs for bills require VAT amounts to be entered. Despite having the feature enabled, the calculations (amounts) for VAT continues to be omitted, so the calculation only shows the subtotal amount prior to VAT. We have tried enabling and disabling the feature, logging out, and still nothing. Sometimes when the VAT is omitted upon the initial data entry, it will automatically update once the bill has been saved. But this is not working at all now.