I keep getting Book errors about unavailable fonts (Simplified Arabic Fixed and Simplified Arabic Fixed Obliqued) in generated files (TOC, IX) even though these character formats have never been used in any of my FM files, are not used in Master pages or Reference pages, not found when searched for, and are affected by the Remember missing font names preference turned on or turned off. I've tried importing formats one-by-one, skipping import for some options, importing and wiping manual overrides. Sometimes the limited import works and sometimes it doesn't.
This is FM 12.0.4 on Windows 10. Is this a known issue? Is there a workaround that's reliable?
typo "are not affected" by turning the remember missing fonts option on or off
They may have snuck into your doc via an image file. I'd be tempted to do a Save As MIF & have a look for any references to those fonts.
FrameMaker supports right-to-left languages since FrameMaker 2015.
You have FM 12.
Could it be that you use a template of FM 2015, which was saved down to FM 12?
In Acrobat Distiller you can change what Acrobat should do when font embedding fails:
Warn and continue
This is in the Font section of the profile. Maybe you can change this setting?
And of course you can also save as MIF, open in a text editor and find and change/delete the sections with these fonts.