Unable to update dates of dependent tasks when they have the same initial date

[AnnaPapiernik]

I have four tasks with the following dependencies:

I want to change the date of all of them by changing the date of task 1. So I click Preview on the Date field and I see this:

So I set new date and dependencies preview disappear:

When I click Save changes, only the date of the first task changes:

This issue I observe only when Task 1 and Task 2 have the same dates. When I change the dates as follows:

I can change dates successfully:

How can I update dependent tasks with the same date in such case?

The same issue I observe on timeline view.

[Bastien_Siebman]

I believe that’s expected behaviour but I am not sure. Same day dependency is considered “broken”, if you look at the timeline it will show as “red”. And tasks with broken dependencies aren’t “pushed”.

@Julien_RENAUD and @Arthur_BEGOU recently discussed with someone at Asana about Timeline, is this something you discussed?

[AnnaPapiernik]

Yes, I know that it is shown as red at the timeline view. But I think that change of this kind of dependent tasks worked in the past.

I did additional tests, and I’m confused about the Asana behavior. See below.

Initial:

I moved one task - Asana didn’t block move of the task 2 to the same date as in task 1 (still broken dependency) but broke the dependency between task 4 and 5 more. I believe that there could be two tasks with the same date of completion, but now we have task 5 out of the schedule.

[AnnaPapiernik]

I made another test: 3 tasks with the same date but different time of completion. As you can see, the dependency is not in red.

But when I move one of them, another tasks are not moved.

I’m looking forward to any thought on it.

[Bastien_Siebman]

@AnnaPapiernik

But when I move one of them, another tasks are not moved

They removed the “red” line for same day dependency but I am sure the codebase somewhere still has something that says a same-day task shouldn’t move…

[AnnaPapiernik]

@Bastien_Siebman Could you please advise who from Asana can look at this issue and provide some inside to it? I still have some concerns about this change (I’m pretty sure that this update worked in the past) and I want to discuss them with Asana team.

@Julien_RENAUD and @Arthur_BEGOU is this sth that you discussed some time ago?

[Bastien_Siebman]

You can only contact support I am afraid… unless @Julio_V has some insights

[Julien_RENAUD]

The behavior also depend on the “dependency” type of the project:

I did the following tests:

1. all tasks are scheduled on the 11th

2. • i choose “consume buffer” and I move task 2 to the 14th
3. • then i change to “maintain buffer” and I move task 5 to the 14th

What you want seems to be “Maintain buffer”, have you tried that?