Thanks, Hilary. I appreciate your response. I learn I need to create a simple 'security' matrix so that everybody can easily see you has access at any stage of a form or view. My form has too many views, too many backend security lists and then workflow emails. The two didn't necessarily marry up.
Now that I've figured out how to do variables in workflows and put all security into one list - going forward, my issue shouldn't arise again. New forms should also be easier going forward.