I'm using this using version 6.21 along with the jQuery 1.91 and the jQuery easing plugin to swap between sections of a form and have found that when I use the certain scroll fx settings radio buttons choices are cleared during the slider transition. This appears to be limited to radio buttons as I have not been able to replicate the issue with any other type of form input.
The offending scroll fx settings are as follows:
crossfade,
cover,
cover-fade,
uncover,
uncover-fade
Scroll, directscroll and fade all work as expected.
Issue is replicable in Chrome, IE and firefox. Havn't tested Safari.