Test.Initialize fails to start after upgrading to NServiceBus.Testing 5.0.5

[ghost]

Test.Initialize fails to run. It throws a KeyNotFoundException.
This was fixed in 5.0.4 #20.
Now it happens again. But now adding Assembly.LoadFrom("NServiceBus.Testing.dll") doesn't help.

            var assemblies = new List<Assembly>
            {
                typeof(IMessage).Assembly,
                typeof(SchemaImportedInFag).Assembly,
                typeof(AutorisasjonOgLisensFormReceivedEvent).Assembly,
                Assembly.LoadFrom("NServiceBus.Testing.dll")
            };

            Test.Initialize(x =>
                x.AssembliesToScan(assemblies));

[andreasohlund]

Duplicate of #20