Had Gravity + Stripe working fine. After updating to Gravity Forms to 1.7.2 I started getting a consistent message of Invalid Card Decline. Tried it in Testing mode, Live mode, Test credit card #, real credit cards #. Uploaded a copy of GF 1.6.11 over the current install, then ran another test.
Voila. Transaction went through ok.
Only issue is that now after each transaction, I am getting this message:
Warning: mysql_real_escape_string() expects parameter 1 to be string, array given in /home/[mydomain]/public_html/payments.[mydomain.com]/wp-includes/wp-db.php on line 885
and i am not getting notifications when the transaction occurs
may need to do a clean re-install to get it to work unless someone knows how to resolve the incompatibility