If the GUI has not been displayed, for example if it launched at startup with "start on logon" and "hide on start up" both checked, and you don't double click the icon to open the GUI before right clicking the icon and exiting, the icons disappear but the actual process persists in Task Manager. At that point you have to kill the process manually to relaunch it.
jonaskohl
commented
3 years ago
If the GUI has not been displayed, for example if it launched at startup with "start on logon" and "hide on start up" both checked, and you don't double click the icon to open the GUI before right clicking the icon and exiting, the icons disappear but the actual process persists in Task Manager. At that point you have to kill the process manually to relaunch it.