NUnit tests not being discovered for project on .Net 8

Describe the Issue

I have a solution containing 6 test projects using SpecFlow and NUnit. Everything is using .Net 8. When I build I get the following logs once per Project:

2023-11-30 08:49:12.722 [error] (c:\Users\USER\source\repos\Automation\APIAutomation\APIAutomation.csproj): SDK Resolver Failure: "The SDK resolver "Microsoft.DotNet.MSBuildWorkloadSdkResolver" failed while attempting to resolve the SDK "Microsoft.NET.Sdk". Exception: "System.IO.FileNotFoundException: Could not load file or assembly 'System.Collections.Immutable, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified. File name: 'System.Collections.Immutable, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' at Microsoft.NET.Sdk.WorkloadMSBuildSdkResolver.CachingWorkloadResolver.Resolve(String sdkReferenceName, String dotnetRootPath, String sdkVersion, String userProfileDir, String globalJsonPath) at Microsoft.NET.Sdk.WorkloadMSBuildSdkResolver.WorkloadSdkResolver.Resolve(SdkReference sdkReference, SdkResolverContext resolverContext, SdkResultFactory factory) at Microsoft.Build.BackEnd.SdkResolution.SdkResolverService.TryResolveSdkUsingSpecifiedResolvers(IList1 resolvers, Int32 submissionId, SdkReference sdk, LoggingContext loggingContext, ElementLocation sdkReferenceLocation, String solutionPath, String projectPath, Boolean interactive, Boolean isRunningInVisualStudio, SdkResult& sdkResult, IEnumerable1& errors, IEnumerable1& warnings)""
2023-11-30 08:49:12.789 [error] Failed to load project 'c:\Users\USER\source\repos\Automation\APIAutomation\APIAutomation.csproj'. One or more errors occurred. (SDK Resolver Failure: "The SDK resolver "Microsoft.DotNet.MSBuildWorkloadSdkResolver" failed while attempting to resolve the SDK "Microsoft.NET.Sdk". Exception: "System.IO.FileNotFoundException: Could not load file or assembly 'System.Collections.Immutable, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified.
File name: 'System.Collections.Immutable, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
at Microsoft.NET.Sdk.WorkloadMSBuildSdkResolver.CachingWorkloadResolver.Resolve(String sdkReferenceName, String dotnetRootPath, String sdkVersion, String userProfileDir, String globalJsonPath)
at Microsoft.NET.Sdk.WorkloadMSBuildSdkResolver.WorkloadSdkResolver.Resolve(SdkReference sdkReference, SdkResolverContext resolverContext, SdkResultFactory factory)
at Microsoft.Build.BackEnd.SdkResolution.SdkResolverService.TryResolveSdkUsingSpecifiedResolvers(IList1 resolvers, Int32 submissionId, SdkReference sdk, LoggingContext loggingContext, ElementLocation sdkReferenceLocation, String solutionPath, String projectPath, Boolean interactive, Boolean isRunningInVisualStudio, SdkResult& sdkResult, IEnumerable1& errors, IEnumerable1& warnings)"" c:\Users\USER\source\repos\Automation\APIAutomation\APIAutomation.csproj)

The tests are not detected. I have deleted the workspaceStorage folder and restarted VSCode and the folder was recreated.

Steps To Reproduce

1.) Update a project to .Net 8.0
2.) Open project in VSCode and build it

Expected Behavior

The tests should snow up in the tests pane.

Environment Information

Latest VS Code
Latest C# Dev Kit Extension (Even tried pre-release version)
Windows 11