I have different devices on iOS 10.3.1 and 10.3.3 jailbroken with H3lix and doubleH3lix. I noticed that, unlike with other previous jailbreaks, the Preferences .plist files for various App Store apps I installed using Filza are NO LONGER saved under the /Library/Preferences folder under each app's own sandbox under /mobile/Containers/Data/Application/<appname>. Instead, these .plist files are all stored in the SAME location under /mobile/Library/Preferences.
This change creates a major problem when using Icon Tool to backup each app's sandbox, as the preference .plist files are not being backed up so that the restored sandboxes often (but not always) do not work.
What did I do wrong? How do I fix this?