I've tried restarting the iMac 24, nothing happens. I've tried reinstalling, and then restarting, still nothing. Keyboard settings doesn't give the option to add a new keyboard. I know it used to be there!
It is possible that IPA Manager is not a standalone application and instead is integrated into the user's system. The user should try searching for it in System Preferences > Keyboard > Input Sources to see if it is listed there. If it is not listed, the user may need to reinstall IPA Manager or contact customer support for further assistance.