Hi Kawashima,
Since the sample sent by you is large, I created a simple sample using remoting concepts and have attached the same here.
In this sample, I have appended a node of FilledShape type(like ellipse etc..)to the model using the data in a database.
You can download the sample from the below provided webpage link,
http://websamples.syncfusion.com/samples/Diagram.Windows/F62004/main.htmCould you please modify this sample to reproduce the issue that you are facing in your application and send it back to us, so that it would be great help to us in analyzing the issue?
Thanks & Regards,
Ramya.