Noticed recently that our installed bitmap font file now requires a reboot (in Win10) before it becomes usable by our application. AI is set to register the font. This seems to be a change in Win10 behaviour.
Installers generated by AI 12.1 also require a Win10 reboot. When the installed font is examined in Explorer, Win10 says that it is "not a valid font". But it is OK once the Win10 is rebooted. Did MS change something recently with fonts in Win10?