Font is not diplayed correctly in Adobe products (FrameMaker and Reader)

1) version:Adobe FrameMaker (2019 release) 64 bit

- updated to the latest version

2) open the book, but not the files in the book. Then click on the book, File -> Save As PDF. Process crashed (as you can see in screenshot before).

- but it works when I open the file in book (e.g. „hauptteil.fm“) and then: File -> Save as PDF. But it is impossible to edit such PDF file in Adobe Acrobat. Acrobat reports „It is unable to find or open „NeueHelveticaForRittal-Light“ font.“
3)
Publish settings - default STS

4)name of the font is „NeueHelveticaForRittal-Light.otf“, it´s OpenType font and yes, it can be legally embedded/distributed in PDFs.

 - maybe helpful legal information of the font:

Copyright © 2012 Linotype Corp., www.linotype.com. All rights reserved. This font software may not be reproduced, modified, disclosed or transferred without the express written approval of Linotype Corp. Neue Helvetica is a trademark of Linotype Corp. and may be registered in certain jurisdictions in the name of Linotype Corp. or its licensee Linotype GmbH. This typeface is original artwork of Max Miedinger. The design may be protected in certain jurisdictions.Neue Helvetica for RittalLightLinotype GmbH:Neue Helvetica for Rittal Light:2012Version 1.00NeueHelveticaForRittal-Lighthttp://www.linotype.comhttp://www.linotype.com/fontdesignersNOTIFICATION OF LICENSE AGREEMENT

You have obtained this font software either directly from Monotype Imaging Inc., its affiliates or its licensees.

You acknowledge that the font software is protected by the copyright and other intellectual property law of the United States and its various States, by the copyright and design laws of other nations, and by international treaties. Your use of this font software is limited to the rights license rights granted to you in the Monotype Imaging End User License Agreement (EULA) agreed to by you at the time of purchase and you should retain a copy of such EULA for your future reference. You may not use, rent, lease, sublicense, give, lend, or distribute the font software, or any copy thereof, except as expressly provided by the EULA.

Hello Jeff_Coatsworth,
this font never worked in PDF generation.

We have PDFs files with that font created in our parent company, but when we want to edit text then error appered and written text is displayed as big dots which is shown in first screenshot.

Adobe Acrobat Reader:

FrameMaker: