Currently if a user clicks Logout with unsaved info on a form, even though "save the form automatically when it is closed or abandoned" (as shown in the screen shot below), the data is lost.
Support has confirmed this as a bug and will be fixing it at some point in the future.
"save the form automatically" bug
"save the form automatically" bug
Tom - V8.8 build 3137 - MySql / PostGres