How to handle parallel gateway join when one path completes

Hi all,

I have a requirement where there is

  1. One parallel multi instance needs to be run
  2. One timer needs to be running for every 30 seconds until the above parallel multi instance is completed.

I tried to achieve the above by using a sub-process. But it is not working for me. From one of the threads I have got the below solution. It is also not working for me. Please let me know where I am going wrong here

Regards,
Sravya

Hi
can you share the bpmn file? I want to know how you have set the properties of the elements.