How do I use "Select Field Value" in an automation?

[Ormesome]

I have a variable that holds a list of "sites". I have a loop that iterates through the list, applies "clear all selections", applies a "select field value" based on the loop item:

The automation then uses a "Get Straight Table Data" to output the filtered data to an FTP:

I am successfully receiving a file per "site", with the site code in the file name, in the FTP destination.

But the "select field value" does not appear to be working. I am receiving multiple identical unfiltered copies of the straight table.

Perhaps I am missing quotes or something?

When I check the response object, { "qReturn": true }.

Thank you