Getting null responses included on on task API search

[Miller_Safrit]

Running the following get url:

https://app.asana.com/api/1.0/workspaces/WORKSPACE/tasks/search?opt_fields=assignee.name&resource_subtype=default_task&projects.any=PROJECT&due_on.after=2026-02-23&start_on.before=2026-02-23&sort_by=modified_at&sort_ascending=false

Specifically, we are looking for tasks that start today or earlier and end today or later. This worked for a long time but recently it started to return tasks that fulfill one of the due_on.after if the start_on is null (i.e. all one-day tasks into the future with this project now appear with this search)

Hoping this is either a quick bug or someone has an idea on how to route around this.

[lpb]

Welcome, @Miller_Safrit,

I didn’t look at your request closely, but I know a search bug was reported today, so I wanted to mention it in case it has something to do with your report too:

SEARCH is NOT Working

When using the search feature there are no results populating. All of our saved searches also are not showing any results. Dashboarding Reporting is OK for now but we can’t search for tasks at all. Is anyone else having this issue?

Thanks,

Larry

[Mikhail_Melikhov]

Hello @Miller_Safrit , apologies for the delayed response, and thank you for flagging this issue.

The underlying behavior that was causing tasks with an undefined start_on to be included in your results was addressed. Going forward, tasks without a start_on value should no longer be returned when applying this query logic.