Hello,
WooCommerce shipping fee works based on Region, Postcode / ZIP, Town / City, not Street address. You can check this without login or use the private/incognito window of your browser.
Moreover, we have double-checked our plugin and we didn’t find any issue like this. It can be your used theme issue. You can check this issue by changing your theme and confirming us.
Best Regards,
ThemeLooks Support Team