Hello team.
I would like to synchronize attachments between parent task and its subtasks and vice versa. Trying with Automation Rules (JWT) but nothing happens. Also, tried with Automation for Jira Pro result is the same.

I think, there are no problems with the automation itself because for other fields, and even for comments everything works correctly.
Maybe there are other ways of sync between tasks? Maybe any example of related script?
Thank you in advance.