Can't go to selected Test from NCrunch Tests Tool Window in VS 2015 CTP5

Sample Test:

public class SetSearchStringExecutionMainTests
{
[Theory, NSubstituteCrmAutoData]
public void Constructor_HasNullGuards(GuardClauseAssertion assertion)
{
assertion.Verify(typeof (SetSearchStringExecutionMain).GetConstructors());
}

[Theory, NSubstituteCrmAutoData]
public void Constructor_Returnsobject(SetSearchStringExecutionMain sut)
{
Assert.IsAssignableFrom<IExecutionMain>(sut);
}

[Theory, NSubstituteCrmAutoData]
public void Methods_HaveNullGuards(GuardClauseAssertion assertion)
{
assertion.Verify(typeof (SetSearchStringExecutionMain).GetMethods());
}

[Theory, NSubstituteCrmAutoData]
public void Run_ExecutesUpdateEntityOnce(
[Frozen] IMessageDependentExecution messageDependentExecution,
SetSearchStringExecutionMain sut)
{
// Arrange


// Act
sut.Run();

// Assert
Assert.Equal(1, messageDependentExecution.ReceivedCalls().Count());
}
}

Sample Code:
public interface IExecutionMain
{

void Run();
}

public interface IMessageDependentExecution
{
void Run();
}

public class SetSearchStringExecutionMain : IExecutionMain
{
private readonly IMessageDependentExecution _messageDependentExecution;

public SetSearchStringExecutionMain(IMessageDependentExecution messageDependentExecution)
{
if (messageDependentExecution == null)
{
throw new ArgumentNullException(nameof(messageDependentExecution));
}
_messageDependentExecution = messageDependentExecution;
}

public void Run()
{
_messageDependentExecution.Run();
}
}

Navigation to the first test is working, since I've updated to NSubstitute 1.10. But the rest still fails.
xunit / xunit.extensions is 1.9.2 - we cannot go higher because of some dependencies of AutoFixture.Xunit that is not compatible to xunit 2.x

Thanks for your help here. I've now managed to reproduce this issue.

I can confirm this is a regression in 2.20. It impacts ALL Xunit v1 theories, regardless of custom attributes, autofixture, etc.

Xunit v2 is not affected by this problem.

A fix will be out for this in the next release of NCrunch, due out within the next few days.

Sorry for the trouble.

A fix for this issue is now available in v2.21, released today - http://www.ncrunch.net/download