Shipping rates API endpoint malfunctioning

Hello,

The Shipping Rates endpoint of the Shopify AJAX API at Cart API reference has stopped working correctly. This always returns the same data across different countries used in the request.

When checking the Ajax API response for different countries and zip codes, the same shipping rate data is returned in all responses. Kindly check out the recording: https://drive.google.com/file/d/1OT9zCZFCJ8ucIwjQMU6Jg0aO8_JKfDWX/view?usp=drive_link

Can someone from Shopify confirm that they are aware of the issue and working on a solution? We have an app with several merchants depending on that feature.

Thanks in advance.

The Shopify AJAX API at Cart API reference is working fine again. Although I have not been notified by support, it seems that the issue has been resolved.