I'm using the Edit Line Item Extension ver2.1 (biz.jmaconsulting.lineitemedit) on Civi 5.13.4 and the latest Drupal 7. I have a paid event where bookings are made via webform-civicrm.
If I edit a lineitem where the cost (unit price multiplied by quantity) exceeds 999.00, the tax amount calculates to NaN.N. I can submit the change but the tax amount is zero. If I add a new line item where the amount exceeds 999.00 the tax amount again reflects as NaN.N, and I cannot save the change. Any ideas? Many thanks, Davy