Participant did not understand the Preview was updated automatically. They didn't use it, and just went straight to 'view page'.
(The latter part of that is a problem until #1831696: View page link goes nowhere, if you have not saved is resolved.)
A possible solution was rejected (Show when the last time the preview was updated) because most of the time it will be '0 seconds ago' but so a solution to this needs more thinking and/or research. Would a 'xx ago' timestamp help?