Why non-recoverable tax expense account is not picked up when POET fields are entered in the invoice

Hi,

We are testing Oracle Projects and we found that when POET fields are entered in the invoice line and then apply one of our Canada non-recoverable GST tax rate, we discovered the resulting Tax distribution line does not show the expected non-recoverable tax expense account.  Instead, what we see the ITEM distribution's account.  I have confirmed that we have configured the Tax expense account for this non-recoverable tax rate.  I have also tested this non-recoverable tax rate has a Tax expense account by creating an invoice without the POET fields.

Please advise what could be preventing Oracle from applying the tax expense account of a non-recoverable tax rate, when the invoice line has been entered with POET fields. Thanks.