I upgraded all of our editors to the newest release of Premiere (v12.1) & After Effects CC (v15.1) and was immediately notified that something was wrong. All but one user complained that since the update they were missing fonts, in this case the font family was Gotham.
This was previously brought up to Adobe back in November here: https://forums.adobe.com/thread/2418916# Despite the fact that it never truly was fixed, it is labeled as "answered" by Dov Isaacs, which it most certainly has not been.
There he repeatedly claims that the fonts were never ever ever deleted by any Adobe Installer/Uninstaller, which I kind of doubt but I think he's referencing a different issue. I think there's something that is triggered in the install (maybe injecting XMP metadata? Which an entirely different issue) that modifies certain non-TypeKit font families in a way that makes them unrecognizable by the CC Suite.
I managed to find a workaround- I copied the fonts from the one unaffected user's system library and used those to reinstall for everybody else, overwriting the damaged font files. Despite getting this to work, I wanted to bring this up to see if it could be looked into by someone at Adobe. I have previously used the Feature Request/Bug Report Form, and have done so for this already but that typically yields no results.