Strange, you may need to reinstall your editor.
When I try to simulate your problem by only rocking the pedal part way during the calibration, the behavior I get is that the calibration compensates and then sends full range unless I have the global sensitivities set to a non default value.
How many pedal modlines do you have? you should have only one. Look at all 10 keys to see if maybe there's a pedal modline that you didn't notice before, that could mess up your data.
When I look at my pedal modline after I enable it there is a pink box labeled "Raw", does that show less than the full range when you rock back and forth? Make sure to be in Hosted mode, then reset global sensitivities, then do the calibration, then check the raw field on your pedal modline, in that order.
Thanks for your patience.