Unfortunately that Didn't work and ended up breaking ncrunch across the board so even a new project didn't build.
This is the trace output
System.InvalidOperationException: No process is associated with this object.
at System.Diagnostics.Process.EnsureState(State state)
at System.Diagnostics.Process.EnsureState(State state)
at System.Diagnostics.Process.get_Id()
at nCrunch.Core.ProcessManagement.ExternalProcessManager.(ExternalProcess )
at nCrunch.Core.ProcessManagement.ExternalProcessManager.(EffectiveProcessorArchitecture , ProcessLoadParameters , Boolean )
at nCrunch.Core.ProcessManagement.ExternalProcessManager.(EffectiveProcessorArchitecture , ProcessLoadParameters )
at nCrunch.Core.ProcessManagement.ExternalProcessManager.LoadExternalProcess(ProcessLoadParameters parameters, GridClientId client)
at nCrunch.Core.BuildManagement.BuildProcessLauncher..()
at nCrunch.Core.BuildManagement.BuildProcessLauncher.(Action`1 , EffectiveProcessorArchitecture , GridClientId , BuildSystemParameters , IList`1 , Nullable`1 , GridClientDescription , DotNetCoreSdkVersion )
at nCrunch.Core.BuildManagement.BuildProcessLauncher.AnalyseComponentBuildInExternalProcess(ComponentLoadParameters parameters, IList`1 customEnvironmentVariables)
at nCrunch.Client.ComponentLoader.SnapshotComponentLoader.(EffectiveProcessorArchitecture , String )
at nCrunch.Client.ComponentLoader.SnapshotComponentLoader.CreateComponentFromXml(FilePath projectFilePath, ParsedBuildXml projectXml, FilePath solutionFilePath, String[] additionalFilesToIncludeAtSolutionLevel, Boolean isLoadedFromFile, IDEVersion ideVersion, BuildEngineId buildEngineId, ComponentUniqueName componentName, TaskSettings componentTaskSettings, Exception parseException, String targetFrameworkForMsbuild, String visibleTargetFramework)