Clash with Woocommerce Order Delivery

The columns that are added to the Woocommerce order screen for delivery dates have started to disappear when this plugin is activated. I can’t see the association here – but I have deactivated everything and this is the only combo that breaks the functionality.

https://woocommerce.com/products/woocommerce-order-delivery/

Happy to share staging site login details directly.

The page I need help with: [log in to see the link]