Convert VSD to VSDX using Aspose.Diagram for .NET - Difference after conversion

I have use Aspose.Diagram to convert visio .vsd to .vsdx format. I found one document which looks different after convertion:
screen.png (73.2 KB)

Test project:
VisioTester.zip (100.2 KB)

Thanks

@ManMasterDevelopment

We have logged an issue as DIAGRAMNET-51782 in our issue management system. We will surely investigate reasons behind it and keep you informed with its rectification status. Please spare us little time.

We are sorry for the inconvenience.

The issues you have found earlier (filed as DIAGRAMNET-51782) have been fixed in Aspose.Diagram for .NET 20.4.