We've had a successful implementation of Nevron Diagram for .NET. Currently we are trying to scale out our ASP.NET application and as part of that we are moving to out of process session state (e.g. AppFabric, sql server). Unfortunately, we are running into errors with the nevron diagram:
Exception information:

Exception type: System.Runtime.Serialization.SerializationException
Exception message: Member '@d' was not found.
Request information:

Request URL: http://evpdemo.doctorevidence.com/NevronDiagram.axd?InstanceGuid=c0885330-a2f7-4fa7-be30-39a8420a00bc&SnapshotGuid=b2cb17aa-3e32-4efe-9799-a015538e27d8
Request path: /NevronDiagram.axd

Thread ID: 15
Thread account name: IIS APPPOOL\DefaultAppPool
Is impersonating: False
Stack trace: at System.Runtime.Serialization.SerializationInfo.GetValue(String name, Type type)
at Nevron.Diagram.WebForm.NDiagramSessionStateObject..ctor(SerializationInfo info, StreamingContext context)

I'm assuming Nevron uses session to cache a generated image - is there any way to change this? Can we override the way it stores objects in session?

Thanks in advance for your help!