Same here it has been an ongoing issue since 3.3.1. Plugins developers, blaming theme developers, theme developers, blaming Woo etc etc.
As above, I’ve deactivated all plugins, one by one, cleared cache across the network. DELETE ALL WooCommerce data, fresh install of Woocommerce 3.3.1. Now I cannot see the two added test orders, even-though it shows two. Prior to the fresh install the new orders page was all mis-aligned.
This is a Woocommerce 3.3.1 issues or WordPress 4.9.4. I have no idea.