Zoho Creator App - data lost if another activity is opened

Zoho Creator App - data lost if another activity is opened

I'm trialling Zoho Creator and it meets most of our requirements.
One problem I'm having is when testing on an Android device using the 'Zoho Creator - Business Process Automation App' if  I start filling in a form, and then switch to another android activity and then back again - when I come back to the Zoho Form all the data I've filled in is gone.  Can this be prevented / can the draft be saved and restored?