Hello, here are steps that reprodeced this bug for me:
1. Create task "Review the system"
2. Create several subtasks for this task
3. Make this task repeated weekly on Mondays
4. Next Monday the task "Review the system" appear for Today and does contain all the subtasks
5. After one more week on next Mondae the task "Review the system" also appear for Today but it DOES NOT contain any subtasks which I assume to be a bug

Hope you will fix it.

Thank you,
Max