Form progress hanging

Hey there!

This plug in is just what I need (so users aren’t required to register) however it seems that as I progress through my form it does save the information but hangs after two or three steps. I just get a spinning wheel even after re-loading the page. I’m running GF 1.8.5, WP 3.9.2, and your latest version of Sisyphus. Any thoughts or directions I could look in?

https://www.ads-software.com/plugins/gravity-forms-sisyphus/