Nested sub-process don't show up, even after enabling it

By some googling I found that VP-UML is supposed to display all nested sub-diagrams after switching on the checkbox in Tools->Application Options->Shape->‘Show unlimited level in preview shapes’.

However, nested sub-processes are not displayed, not even after restarting VP-UML. This is for VP-UML build 20120926ad running on MacOS.

Hello jvbethlehem,

The nested sub-process will be display if the option is turned on. Can you send me your project file to have a look? You can send to Please make sure you include the URL of this post in your email. Thanks!

Best regards,
Rain Wong