Analytics Order Report Issue

When we run the WooCommerce Analytics Order Report, the Net Sales displays as a negative amount when a gift card is used for the full amount in the cart, including shipping. The negative amount is equal to the shipping amount. As you might imagine, this will really throw off this reporting over time.

Here is a screenshot.

https://drive.google.com/file/d/1-8QOTJN52lxaxKEot1cDLZO7W5yHwnso/view?usp=sharing