Try this:
a. Ouit PS
b. Shut down your computer (wait 2-3 minutes)
c. Start up your computer
d. Start PS
OR:
You can force PS to “forget” about the font by doing this:
a. Quit PS
b. Uninstall the font.
c. Start PS, then quit PS.
d. Install the font again.
Now when you start PS again, it will treat the font as if was new. If this was what was causing the problem, it should fix it. If you still have the problem, then it’s something else.
(You may need to clear your font caches using Font Cache Cleaner or Font Finagler and restarting.)