Magento 2 Transactional Email Template Editor - Issue with Google Markup URL

We have an issue with this extension. After purchase, the extension was installed and tested and the markup was sent to Google for approval which was subsequently approved. I have noticed an issue today which is high priority.
We are using copies of the supplied Weltpixel templates where we have only modified the text, markups have not been changed.

Opening an 'Order Confirmation' email and the button within the email 'View Order' takes you to web URL [OUR WEBSITE ADDRESS]/customer/account/login/referer/[ASSORTED TEXT]/ which is correct.

However, clicking the 'View order' link within the Google Markup (where the order total and products are stated) takes you to this address:

[OUR WEBSITE ADDRESS]/[HIDDEN]/sales/order/view/order_id/3018/key/78d28785d17c04087078b6cd28f47eb4bd514be7fe638aa7213b3cc8aa80230f/

Where I have put [HIDDEN] this is showing the admin URL to our website.

Can you assist as this is far from secure?