Has anyone ever had this issue...

I have a file (file1) that has links to a 2nd file (file2). I saved a copy of File1 and named it file3. No data was changed in file3 and it still has a link to file2.

I closed file1, file2 & file3

I opened file2, amended it's values, saved it and closed it. I then Opened file1 and selected update links. File1 updated with the newly amended values from file2 - As expected.

With file1 still open, and file2 still closed I opened file3 and selected Do not update. File3 displayed the original values from file2 - As expected.

I then switched windows to view file1. It is now displaying the same values as file3 (the orginal file2 values) - Not as expected. There is no file link between file1 & file3 and file2 is not open.

Hopefully I've explained it clearly, what is happening here?

Thanks in advance