Hi Mateusz,
These following images show the PHP result from the server.
GD
IMAGICK
The following image shows the result from the plugin settings page.
PLUGIN SETTINGS
I am with a hosting company called SiteGround and they have been very helpful, however were unable to find a solution and believe it may be that the plugin does not recognize the setting?
If you copy the emails from the WooCommerce ‘template/emails’ folder into ‘yourtheme/woocommerce/emails’, simply open the files in a text editor and comment out the following action: do_action( 'woocommerce_email_order_details', $order, $sent_to_admin, $plain_text, $email );
Go to Content > Order Items > Order Table Style and set it as ‘Normal’. See how you go with that!