Cyclic Reference Error in WPF Theme Application (Settings & System Tray)

[Kaleemullah-Younas]

Microsoft PowerToys version

0.70.0

Installation method

Microsoft Store

Running as admin

Yes

Area(s) with issue?

General, System tray interaction, Settings

Steps to reproduce

1. Open PowerToys and verify the version by hovering over the system tray icon or checking within Settings.
2. Trigger a system theme change (or any action that causes the UI to refresh).
3. Observe that the application throws a cyclic reference error while evaluating the Style property on a ScrollViewer.

✔️ Expected Behavior

• The UI components, including those within Settings and system tray interactions, should load and update smoothly without triggering cyclic reference errors.
• The theme should apply correctly without causing an infinite loop in style evaluation.

❌ Actual Behavior

• A System.InvalidOperationException is thrown with the message:
  "Cyclic reference found while evaluating the Style property on element 'System.Windows.Controls.ScrollViewer'."
• The error log details indicate that the issue originates from the theme manager when applying the Fluent UI theme, leading to a cyclic reference within the style resources.

Other Software

.

[similar-issues-ai]

We've found some similar issues:

• System.InvalidOperationException: Cyclic reference found while evaluating the Style property on element 'System.Windows.Controls.ScrollViewer'. #37428 , similarity score: 83%
• System.InvalidOperationException: Cyclic reference found ... #36599 , similarity score: 82%
• Exception: System.InvalidOperationException: Cyclic reference found while evaluating the Style property on element 'System.Windows.Controls.ScrollViewer'. #36513 , similarity score: 82%
• Exception: System.InvalidOperationException: Cyclic reference found while evaluating the Style property on element 'System.Windows.Controls.ScrollViewer' #36881 , similarity score: 82%
• System.InvalidOperationException: Cyclic reference found while evaluating the Style property on element 'System.Windows.Controls.ScrollViewer'. #36818 , similarity score: 81%

If any of the above are duplicates, please consider closing this issue out and adding additional context in the original issue.

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