VS Code: After installing C# extension , there is no intelligent prompt when entering "<input asp".

[v-wenkecheng]

VS Code: 1.76.1
C# Extension version:1.25.5
SDK: 8.0.0-Preview.3.23164.2

Platform 

• Windows
• Linux
• Mac 

To reproduce: 

1. Open a normal Terminal Emulator, create MVC project and open it using VS code

md MVC3x
cd MVC3x
dotnet new mvc
code .

2. Go to https://github.com/OmniSharp/omnisharp-vscode/releases > Download the csharp-1.25.5-win32-x64.vsix.
3. In VS Code and go to the Extensions Tab, select "Install from VSIX" > install the file you downloaded.
4. Open Layout.cshtml file and in body tab, type "<input asp", verify the intellisense list show.

Actual behavior:

Expected behavior:

Additional context:
Note: 

1. This issue does not repro on C# extension 1.25.4.
2. This issue only repro on C# extension 1.25.5.
3. This issue also repro on SDK 7.0.300-preview.23159.18 + C# extension 1.25.5.

[v-wenkecheng]

After creating the blazor project and in the Index.razor file, there is no smart prompt when entering "<inputt".

Actual behavior:

Expected behavior:

Additional context:

Note: 

1. This issue does not repro on C# extension 1.25.4.
2. This issue only repro on C# extension 1.25.5.