Have you searched for the task name, without q: or anything, just simply the name?
Does the task show up in completed?
I have searched for the task, by task name, task date, project, task comments, searched in history and completed-any other suggestions?
What happens when you search by "overdue"? Does anything show up?
How do you know you have a 153 days overdue task? Through Karma, or email?
When I search overdue tasks are listed by days overdue. The task I am trying to locate is emailed to me. That is the only task I cannot locate.
We are not sure why you are receiving that in your email. We will look into it on our end.
In the meanwhile, please try disabling the email notifications (digest) for a day, and then re-enable it.