Visual Studio 2026 C# Code Analyzer CS1998 is missing

2 days ago 8
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Consider async method

public async Task StartAsync(CancellationToken cancellationToken) { }

Visual Studio 2022 correctly shows the Warning CS1998 "This async method lacks 'await' operators and will run synchronously."

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But Visual Studio 2026 completely ignores the issue. Same .NET 8 project, same file.

Both VS instances are Professional with the latest updates.

Is there any way to enable CS1998 the Analyzer on VS 2026?

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