Hey @nnylip,
Are you printing the order via a plugin or just by printing the page in the web browser? If it’s just in the browser, does this still happen when only WooCommerce is active?
If it does, then feel free to open up an issue about this with the developers at GitHub. There’s a spot there where you can report bugs so they can be investigated and fixed.
https://github.com/woocommerce/woocommerce/issues/new/choose
If the printing is via a plugin, get in touch with the plugin’s developer to make sure they’re aware of this.
Thanks!