Hi, I found this issue: https://forum.aspose.com/t/create-a-new-connection-point/160346/9
and I’m running link you provided at the bottom [just in case I also attached this source code]: https://docs.aspose.com/Diagram/…...Diagram Product Family Lukasz_Dobrzynski...https://docs.aspose.com/diagram/java/use-connection-indexes-...