"Save" button disappearing after changing a list setting (iOS)

Hello. I'm receiving user feedback on my DataField, saying the "Save" button is vanishing from the Settings screen after editing the DataField settings.

The user is using ConnectIQ on iOS (iPhone 14) to configure settings on a DataField. The DataField settings are laid out using Groups, and each Group has multiple List settings inside.

As I understand it, when clicking the "Settings" button on ConnectIQ, the main menu (top-level list of Groups) appears. The "Save" button is visible. The user clicks on a Group. The "Save" button is still visible (though on Android it's not). The user changes the value of a List setting, and after returning to the current group, the "Save" button is gone. The user clicks Back and is taken back to the top-level list of Groups, and the "Save" button is again not visible, preventing the user from saving.

I am unable to reproduce this on Android, though I'll try on iOS tomorrow. Has anyone experienced anything like this? Should we not be using Groups in our settings? Thank you

DataField link, if relevant:

https://apps.garmin.com/en-US/apps/722cc8e0-e0ba-474e-bb78-17256d575dfb