Please clarify some details:
1) version of Windows (Win 10, Win 7 or earlier?)
2) do you see that PostScript fonts are not visible in Adobe Illustrator immediately after installing the PostScript font in FontExpert
(= install a font in FontExpert, go to Illustrator, check its font menu)?
In past there were to known problems:
a) One was Adobe specific: Adobe Products not recognized PS fonts if they were installed in the folder other than special common folder known to Adobe.
https://proximasoftware.com/forum/viewt ... ?f=1&t=261
b) The other was a bug in Windows: After restart of Windows Post Script fonts were not loading. To solve this issue we installed a special utility called Type1Loader.exe which ran on Windows startup and loaded PostScript fonts. (The latest FontExpert does not install this utility as we thought that Microsoft has fixed this bug.) Type1Loader was included in FontExpert versions 14.0, 13.0, 12.0, 11.0, 10.0.
User Guide for version 14.0, Type1Loader information is on page 59: https://proximasoftware.com/files/fontexpert2014.pdf
So the main question is, please confirm, do you recognize that PS fonts are not visible in Illustrator immediately, or after Windows restart?