I have worked with the presentation shared by you using Aspose.Slides for Java 18.2 and have been able to observe the issue. A ticket with ID SLIDESJAVA-36973 has been added in our issue tracking system to resolve the issue. This thread has been associated with the ticket so that we share notification with you once issue will be fixed.
The issues you have found earlier (filed as SLIDESJAVA-36973) have been fixed in this update. This message was posted using BugNotificationTool from Downloads module by mudassir.fayyaz