Issue copy/pasting tasks between projects

[Engreeks1]

Hi there,

I'm having a weird problem when I copy and paste tasks from one project to another. Certain tasks (not all of them) will have the same duration and start date in both projects, but in the new project (where tasks are pasted into), the end date is different.

e.g.

Original File
Cons Testing 10d Tue 10/26/10 Fri 11/5/10

New File
Cons Testing 10d Tue 10/26/10 Mon 11/8/10

As you can see, the end date is different.

I tried looking at the calendar settings, but everything is identical. Any guesses on what this might be?

Thanks a bunch in advance!

[sergioKomic]

Copy/ pasting the information into your Project plan can have unforeseen effects. While you paste information into calculated fields (for instance, duration, start/finish dates), Project might recalculate the value, either mechanically or while you state. If you paste a start date, you automatically bring in a limitation on that task.