Fields that are hidden at the time the form is save do not have their contents recorded. If you mean that when show/hide fields are active parts of the form that are not hidden are not saved this might be a bug. Can you provide more information about what you are seeing?
I use the show hide feature as paging method to free up space on the screen of the tablet. I assumed that if a box is active and filled it would be recorded whether it remains on screen or hidden!.. This is a bug for me.
Drew, I use the show hide feature to page large forms, I would think that if an element is made active whether it is hidden later or not it needs to be recorded.. This is a bug to me. This is a useful feature but if it is not recorded it is not worth having.