If you have a valid license for the font from Adobe, there is no legal impediment to your reinstalling the font. (Hopefully, you still have the original font file you purchased.)
I do NOT know if it will solve your problem, but deleting the font from the OS and reinstalling it is not very difficult or time-consuming, There is a good chance it will solve your problem.
Thanks for your helpful message. I'll try out what you suggest. FWIW, another person in a different newsgroup (not a computer ng!) suggested periodically checking out duplicate fonts in the Font Book, resolving those difference, then opening Fonts in the Cache Folder, moving all the font caches to the trash, and then restaring the Mac. Any suggestions regarding this? --E.A.C.