Amy I’ve run into an inability to paste several times in MS Project. Every time it was because the table used by the view was corrupted. Try copy/paste in another table/view and if that works, then it’s definitely the table definition. To fix the table; Open the table definition and scan down thru the rows listing each field in the table. You should find one row that indicates something abnormal, meaning the field name will say something like “Invalid”. I can’t remember exactly what it will say, but it will be obvious. Delete that row(s) from the table definition, save the table and you should now be able to copy/paste in that view again.
Thanks. I opened the entry table view and all of the columns look fine. I just purchased a mouse instead of a track pad which I am using currently. That could also be the root of the issue. Let me know if you have other ideas. Thanks.