Description

As stated in the docs, before v9.0.21, the Local AppData folder was used for storing preferences. Now, there has been a change in this behavior.

Before: %LocalAppData%\<publisher_display_name>\<app_id> (local profile)

After: %AppData%\<publisher_display_name>\<app_id> (roaming profile)

Now, two copies of Preferences are available and all the saved settings are written to a new file in a different location.

Steps to Reproduce

1. Create a new .NET MAUI App
2. Save something to the Preferences storage
3. Read the saved value
4. Set Windows as the platform target
5. Run with version before 9.0.21 and then with 9.0.21
6. Check the first comment for details

Link to public reproduction project repository

https://github.com/egvijayanand/maui-issue-26602

Version with bug

9.0.21 SR2.1

Is this a regression from previous behavior?

Yes, this used to work in .NET MAUI

Last version that worked well

9.0.14 SR1.4

Affected platforms

Windows

Affected platform versions

Windows SDK 10.0.19041.0

Did you find any workaround?

NA

Relevant log output