In which situation, with or without captcha?
As it was told before, if you are authenticated and captcha is nor required, WOF spin is just an animation to show the result, the real "decision" has been already made and you may check it in MULTIPLY BTC/ROLL HISTORY table. That's why after page refresh you see information that WOF expired.
If first you must pass captcha validation, then roll is executed when you press the button.