event store subsciption fails intermittently

[rofr]

Failed CanWriteManyAndReadFromMany(Provider:Memstate.EventStore.EventStoreProvider, Memstate.EventStore, Version=0.1.0.0, Culture=neutral, PublicKeyToken=null, Serializer: Memstate.JsonNet.JsonSerializerAdapter, Memstate.JsonNet, Version=0.1.0.0, Culture=neutral, PublicKeyToken=null, Name:memstatebae4e34664)
Error Message:
Expected: 300
But was: 0

Stack Trace:
at System.Test.ClusterTests.d__4.MoveNext() in /Users/rf/memstate/src/System.Test/ClusterTests.cs:line 136

Standard Output Messages:
C: Provider:Memstate.EventStore.EventStoreProvider, Memstate.EventStore, Version=0.1.0.0, Culture=neutral, PublicKeyToken=null, Serializer: Memstate.JsonNet.JsonSerializerAdapter, Memstate.JsonNet, Version=0.1.0.0, Culture=neutral, PublicKeyToken=null, Name:memstateb34b2a1454
[23,11:55:07.856,DEBUG] Deserialization to EventStore.ClientAPI.Messages.ClientMessage+StreamEventAppeared failed : System.MissingMethodException: No parameterless constructor defined for this object.
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at System.Activator.CreateInstance(Type type)
at ProtoBuf.Serializers.TypeSerializer.CreateInstance(ProtoReader source, Boolean includeLocalCallback) in C:\code\protobuf-net\src\protobuf-net\Serializers\TypeSerializer.cs:line 314
at ProtoBuf.Serializers.TypeSerializer.Read(Object value, ProtoReader source) in C:\code\protobuf-net\src\protobuf-net\Serializers\TypeSerializer.cs:line 209
at ProtoBuf.ProtoReader.ReadTypedObject(Object value, Int32 key, ProtoReader reader, Type type) in C:\code\protobuf-net\src\protobuf-net\ProtoReader.cs:line 607
at proto_16(Object , ProtoReader )
at ProtoBuf.Meta.TypeModel.DeserializeCore(ProtoReader reader, Type type, Object value, Boolean noAutoCreate) in C:\code\protobuf-net\src\protobuf-net\Meta\TypeModel.cs:line 748
at ProtoBuf.Meta.TypeModel.Deserialize(Stream source, Object value, Type type, SerializationContext context) in C:\code\protobuf-net\src\protobuf-net\Meta\TypeModel.cs:line 606
at ProtoBuf.Serializer.Deserialize[T](Stream source) in C:\code\protobuf-net\src\protobuf-net\Serializer.cs:line 84
at EventStore.ClientAPI.Transport.Tcp.ProtobufExtensions.Deserialize[T](ArraySegment`1 data)