Error Process Integration Response Error

Good Day,

I have tested my URL link in Postman and it seems to work in there, however, when I create a record data through Web Services using HTTP with the same link and I test it in Appian where the 

Response Body Parsing is "Convert JSON to Appian Value" the test fails, also keep in mind I did select "Google Service Account" and uploaded the JSON file that I had received when creating my service account that is linked to the project that contains the data.

When I run the test when the Response Body Parsing is "Return raw response body" the test passes.

Is there a reason why the data from Big Query does not convert the JSON to Appian Value?