… in page layout, edit system margins …

If I understand you correctly, you are talking about the window Edit System Margins - right?

In the window Edit System Margins you can specify a system range:

What happens if you type the system numbers into the fields?

Does Finale allow you to do so?

Hello Peter,

No, I refer to the numbers on the left, allotted to each staff.

The "Edit System Margins" does allow me to insert the missing numbers successfully.

PS I have also noticed that the locks are abnormal. Some staves have two and some have none.... perhaps this is not important.

… This is happening in all scores from a new group of four …

I suppose that your word ‘scores’ means ‘Finale documents’ - right?

What do you mean by your word ‘group’?

- a group of Finale documents?

- a group of Finale templates?

- a staff group?

- or?

Anyway, I suspect some sort of file corruption.

A trick that often fixes problems:

Export the document as MusicXML.

Then, import the MusicXML into a fresh, new document.

I was using a prepared template for a series of similar Finale documents, and as you say it may well have been corrupted. I have carried out your XML trick and it is working.

Many thanks, Peter.