When an order is cloned, its taxes drop completely or calculate incorrectly.
There is a disagreement in the company's Tax Exemption status. Check the company's record in the account table. Look for the TaxExempt and IsFullyTaxExempt values. If TaxExempt is 0 and IsFullyTaxExempt is 1, change IsFullyTaxExempt to 0.
Query to locate company ID:
Query to find tax exemption satuses:
Query to update IsFullyTaxExempt status: