Using Staging Environment iin Preview Mode(WePay)

Hi, I'm trying to run a test registration using a test Mastercard number found in this support article: https://www.jotform.com/help/449-How-to-integrate-Chase-Wepay-with-JotForm. I am connected using the staging environment. When I tried to submit the form I got an error message saying the PCI checks failed. (I copied and pasted the test CC number, if that matters). This was in form preview mode. Do I have to publish the form to test a credit card submission? or is there anything else I am clearly doing wrong?

Is it possible to run a test using Live Environment? Or is that only used for actual submissions. 

Yes, you can try testing form using its direct link instead of preview mode. Forms are being published automatically, so you do not have to do any extra step for that. Here is how to access form direct link: Where-to-Find-My-Form-URL

Also, you can test form in Live environment, but to do so, you will need to use real card and process real transaction. You may consider creating a product with $1 price for testing purpose.