MS Project Pro 2013 - Status of summary task "late" when subtasks all "complete" or "future task"

Can you post a screen shot?  I also want to confirm that you are using the built-in Status field in Project, not a custom field.

Can you also let us know your version information.  Go to File > Account and click About Microsoft Project.  Let us know the numbers in parentheses after "Microsoft Project 2013"

Sorry for the late reply - I thought I had email notifications on...

The number in parentheses is 15.0.4745.1000. I am using the built-in "Status" field, yes.

Here's a screenshot. I'm talking about task 6.1 and its subtasks. Thanks for your help!

Thanks for the update and sorry for the delay.  It certainly *Looks* wrong.  Just out of curiosity - if you set the "On Schedule" task to autoscheduled, does it fix the issue?  If you add the vertical line for the  status date, do you have any incomplete work to the left of the status date?

The manually scheduled tasks are making me a bit nervous but I can't suggest switching everything to autoscheduled or those tasks without predecessors will lose their dates.

It also appears no updates have been applied since August 2015.  You may want to go

https://blogs.technet.microsoft.com/projectsupport/p/msp13/

and apply the most recent updates.  I don't see this issue explicitly mentioned - but not all "fixes" get mentioned in detail.

Thanks Julie.

Following your suggestion, and making a back-up copy just in case :), I've tried setting every thing to autoscheduled to see if that fixes it, but it doesn't. I tried moving the % complete beyond the status date line on a couple of tasks that were behind it but that didn't make any difference either.

I hear you about updates but I'm in a large organisation where I can't control such things...

However, I've now cut and pasted the section into a new project and the scheduling has sorted itself out. I replaced the old section with the one from the new project and hey presto, all fixed. It's a bit of a laborious task as the dates jump around a bit and need to be reset, but it works for me in the short term at least!

Thanks for your help.

I'm glad you were able to sort it out by replacing the portion of the file that is behaving incorrectly.  Thanks for letting us know how you fixed it and you are very welcome for the assist.