Hi David, as far as i know you need to setup a redirection to profile for mx7.4 and up, see https://docs.mendix.com/refguide/navigation#Redirection.
Can you make sure you have configured redirection profiles for phone and tablet?
Thank you for the answer, but I have configured redirection profiles for phone and tablet.
When generating your PhoneGap code from home.mendix.com, I'm pretty certain you can leave the profile names blank. Then, make sure your app model actually has a Hybrid Mobile profile. You might need to add it in Project -> Navigation if upgrading from Mendix 6.