Using
em Client v.7.1.30794.0
on Win 10 Pro (Version: 1703, Build: 15063.608)
Settings show that the em Client is supposed to show a popup window, show a notification in the tray area and play a sound, none of which is happening UNLESS I uncheck “disable notifications when fullscreen application is detected”, even though I’m not running any applications in fullscreen.
This is, of course, annoying when I AM running fullscreen applications.