aspnetcore Not all css is being recognized in isolation

This issue has been moved from a ticket on Developer Community.

[regression] [worked-in:Visual Studio Version 2026 18.0.2] @* App.Razor *@

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <base href="https://developercommunity.visualstudio.com/" />

&lt;ResourcePreloader /&gt;

&lt;link rel="stylesheet" href="lib/FontAwesome/css/all.css" /&gt;
&lt;link rel="stylesheet" href="lib/App.css" /&gt;
&lt;link rel="stylesheet" href="lib/ColorCss.css" /&gt;
&lt;link rel="stylesheet" href="lib/DefaultCss.css" /&gt;
&lt;link rel="stylesheet" href="lib/MainCss.css" /&gt;
&lt;link rel="stylesheet" href="app.css" /&gt;
&lt;link rel="stylesheet" href="TheProjectName.styles.css" /&gt;

&lt;ImportMap /&gt;
&lt;link rel="icon" type="image/png" href="favicon.png" /&gt;
&lt;HeadOutlet /&gt;

</head> <body class="Free-0"> <Routes /> <ReconnectModal />

&lt;script src="JScript/SystemJS.js"&gt;&lt;/script&gt;
&lt;script src="JScript/MenuJS.js"&gt;&lt;/script&gt;
&lt;script src="JScript/GeoJS.js"&gt;&lt;/script&gt;
&lt;script src="JScript/PrintJS.js"&gt;&lt;/script&gt;
&lt;script src="JScript/jQuery v3.7.1.js"&gt;&lt;/script&gt;

&lt;script src="@Assets["_framework/blazor.web.js"]"&gt;&lt;/script&gt;

</body> </html> Recognizes some Css FontAwesome but none of the css dropdowns work seems like it only picks ups some of them this was after creating a new project and copiny my existing components in
I am using Blazor Server WEB APP .net 10 C# Visual Studio Version 18.0.2 .NET SDK 10.0.100 nuget and extensions are UpToDate .. not using Azure <script src="_framework/blazor.web.js"></script>

EF Core Power Tools latest version SSMS 22

Original Comments

Feedback Bot on 12/3/2025, 07:31 AM:

We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.

Dec 03 '25 22:12 vsfeedback

Could we ask for minimal reproduction repository?

Dec 04 '25 15:12 ilonatommy

Thank you for filing this issue. In order for us to investigate this issue, please provide a minimal repro project that illustrates the problem without unnecessary code. Please share with us in a public GitHub repo because we cannot open ZIP attachments, and don't include any confidential content.

Dec 04 '25 15:12 dotnet-policy-service[bot]

This issue has been automatically marked as stale because it has been marked as requiring author feedback but has not had any activity for 4 days. It will be closed if no further activity occurs within 3 days of this comment. If it is closed, feel free to comment when you are able to provide the additional information and we will re-investigate.

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Dec 09 '25 00:12 dotnet-policy-service[bot]