Recurring Sub-Tasks Issue
If I create a recurring task with recurring sub-tasks, the filter task view shows both the recurring task with recurring sub-task and the recurring sub-task separately. This is very confusing and seems to be a bug. The sub-task should remain connected to the main task in every view.
Basically, what I'm trying to do is create a recurring task with sub-tasks which recur on the same schedule as the main task. If I make the sub-tasks have no recurrence, then once they are completed, they no longer occur with the main task. How can I make recurring sub-tasks work?
That's not a bug. This is the only way that we can make sure you won't miss any tasks and also have the option to check if and what sub-tasks a parent tasks has.
That said, if you search for anything (date, word, label), you will see all tasks regardless of their indent level that match the search criteria. If some of them are parent tasks, you'll also have the option to check what sub-tasks they contain. If some of these sub-tasks also match the search criteria, then they will be part of the main results as well.
Both alternatives wouldn't work because if we would only show the sub-task below its parent then in case that the parent wouldn't match the criteria, you would see irrelevant tasks on the result list just because they may have one or more sub-tasks that are relevant and have to find them manually.
If we would show the task separately only, but not below the parent task, then if you wouldn't see which task is a parent, you could accidentally complete an entire structure.
So again - the current solution seems best to make sure nothing gets missed and at the same time you can preview a parent's subtasks for reference.
Nonetheless, if you have a suggestion to change it, we would greatly appreciate it and you're welcome to add a feature request/suggestion to our Votebox: http://todoist.com/Vote/
I think the issue is how recurring tasks and sub-tasks are represented in the filter views (ie. today) with only the recurring symbol. Because of this you cannot tell if a sub-task to a main task is recurring today or a month in the future.
However, recurring tasks and sub-tasks on the Project view have colors, days and tool-tips which makes everything clear. I think the solution is to use these aspects of the Project view for the filter views of recurring sub-tasks.
We'll try to improve the display of recurring tasks on the today view in future updates.