Shipment Tracking no longer autocompletes on customer shipping page

Hi

In the past, if I clicked on a customer’s tracking link within the admin area it would lead to the customer view of the shipping page and immediately show the tracking details for the shipment.

Now, clicking on the link leads to the customer view of the tracking page, but then the customer has to either enter their order number and email address or the tracking number.
This is even though the tracking number is embedded into the URL of the tracking page.

This behavior is different from how it used to work. In the past, it would immediately show the tracking for that tracking number without any need to enter the tracking number (as it is already embedded into the URL).

Has there been a change to the behavior of the tracking page? Or is there a setting I need to change somewhere?

Thanks