**REGRESSION INFO** Work with NET 9,8 **INSTALL STEPS** 1. Clean machine: Win11 x64 24h2 ENU 2. Install SDK 11 Preview 1 3. Add feed for SDK 11 Preview 1 **REPRO STEPS** 1. File > New > Project > Blazor Web App > .NET 11.0 (Preview)> WASM > Global > Create. 2. Right click project > Open in terminal > run command `dotnet watch` 3. Open MainLayout.razor.css > Add following code to Line 5: `background-color: gold;` 5. Save the file. Note: - Repro on WASM and Auto. - Doesn't repro on per page/component. **ACTUAL** Background color of the page wasn't updating. https://github.com/user-attachments/assets/10dbc06d-0e5f-48f6-835d-2a7db3afd13f **EXPECTED** Background color of the page should be updating.