Hello everyone, I am new and this is the 1st time I have posted on the forum so bare with me. I have 3-4yrs of experience with MS Project and use it every day. I recently have an issue I have never had before. I run a master Gantt Chart with other projects inserted in. I opened my master chart last week and everything looked just like I saved it a day or to before. I opened a project and noticed that when I did the duration changed from 23days to 1 day and the finish date was the same as the start date. After looking into it and changing some of the subtasks I found that it is only summarizing the 1st tasks and not the entire project. So trying to out smart it I indented the tasks to be under the 1st task and the dates for the whole project changes again but farther back and both the start and finish dates change to before the original start dates. Every project I expand does this and wont change back. Any ideas? I'm hoping its something dumb or simple that I'm over looking.

Hi,

If it was working okay before and just recently changed it may be due to an update that was released in November. It should be fixed with the December public update. Can you please share your version information for project? (Click File > Account, About project.) That may help narrow it down.

The version is 15.0.4875.1001
This is the NOV 8th update. I didn't start having trouble until NOV 23rd.

Yes, the update in November caused a regression issue. it is scheduled for a fix with the December public update.