Why is LTC Goudy Oldstyle Pro Bold re-added to my system every time I start CC?

Subject says it all--any time I open a CC program (I just use AE the most so I'm putting it here, since there doesn't appear to be an all-CC forum, but it happens with any program and/or CC desktop) for the first time after restarting my computer, I get a "The font LTC Goudy Oldstyle Pro Bold was added" notification. It only happens with this one font--any other Adobe font I use behaves normally. Why is this, and how can I make that stop? It's not harmful, just annoying and perplexing.

I'm on a stout Windows 10 desktop PC with plenty of memory/RAM/GPU horsepower, running the latest CC programs (but this has been going on for a while, for the last few updates).