Ordering subtasks in reminders

I was able to create a short cut to prompt for a few things and then create a reminder with subtasks. I can name the main task and add notes to the subtasks based on the responses to the prompts. But my problem is controlling the order of the subtasks. They are coming out in a random order, different on different invocations of the shortcut.

I am using the Reminders app action Add New Reminder to add both the main task and the subtasks. For the subtasks I fill in the Parent Reminder property. Since this does not give me control over the order, I suspect I need a new technique.

By the way I created this on the Mac running Monterey 12.0.1 and the short cut also runs on the iPhone (IOS 15.0.2) but with the same ordering issue.