Welcome to the forum!

If I understand you correctly, your problem is document specific (= in some Finale documents only, not in some other Finale documents) - right?

What version of Finale are you using?

Oh thanks... and so quickly.!

Yes.   You are correct.  And the on one I want to use,  the soprano voice is not coming through. 

I am Using Fnale 26

Also when I changed keys from an A to a D both the c and f became neutral. 

Susan, 

Do you mean that the C and F showed a natural sign, before showing the new key signature? You can change that behavior in Document Options > Key Signature > uncheck Cancel Outgoing Key Signature

Thanks.. I am making a note of that valuable info.   But am still not able to get the soprano voice on playback. 

If you will send me the file, I’ll have a look. My email address is in my signature.

… the soprano voice is not heard. The bass and the chords are there …

If I understand you correctly, your document is a multi-staff document where only one of the staves (= the Soprano staff) is silent - right?

Since you are using Finale v26, take a good look in the Instrument List.

Possibly the Soprano staff is muted in the Instrument List?

What Peter said. That would be the first thing I would look for!

Thanks so much Peter and Mike.  It turns out it was in something called Garriton. I switched it an lo and behold... sound!  Could not have done this without you. 

I am using Finale 26.

I have a consistent problem that on whatever piece I am working on, and whichever instrument, The topmost line is mute on playback. In the present case, if I put notes in the second violin part (same garritan instrument) I hear them, but in the first violin part I do not hear them.

When I enter them into the first part, I do not hear them then, either.

If I enter them in the second part (and hear them entering) and move them to the first part, I do not hear them. once moved. If I enter notes into the first part (and do not hear them when I enter them) and then move them to the second part - I do hear them on playback.

It happens with flute parts, too, if that is what I have on top of the score.

Any advice or help?

The top part is not muted or the volume set to zero by any chance,is it?

It is not - at least not on Mixer or on Audio Track. Are there other mutes?

… It is not - at least not on Mixer or on Audio Track. Are there other mutes? …

There is a Mute column in

ScoreManager > Instrument List

I have found that one, too, now. The three mutes are linked - turning one on turns the others on as well. The top line of the score is not muted anywhere. I have turned the volume to full.

Happiness! Someone suggested that I try reassigning Playback Sounds and it worked!