ArgumentNullException: Buffer cannot be null.

Happens during swap/rebalance.

Couchbase.IO.Operations.OperationResult`1 - System.ArgumentNullException: Buffer cannot be null.
Parameter name: buffer
at System.IO.MemoryStream..ctor(Byte[] buffer, Int32 index, Int32 count, Boolean writable, Boolean publiclyVisible)
at System.IO.MemoryStream..ctor(Byte[] buffer, Int32 index, Int32 count)
at Couchbase.Core.Serializers.TypeSerializer.DeserializeAsJson[T](Byte[] buffer, Int32 offset, Int32 length) in c:\Users\jmorris\repos\working\2.0\couchbase-csharp-client-ng\Src\Couchbase\Core\Serializers\TypeSerializer.cs:line 129
at Couchbase.Core.Serializers.TypeSerializer.Deserialize[T](Byte[] buffer, Int32 offset, Int32 length) in c:\Users\jmorris\repos\working\2.0\couchbase-csharp-client-ng\Src\Couchbase\Core\Serializers\TypeSerializer.cs:line 118
at Couchbase.IO.Operations.OperationResult`1.GetConfig() in c:\Users\jmorris\repos\working\2.0\couchbase-csharp-client-ng\Src\Couchbase\IO\Operations\OperationResult.cs:line 88