eMoji Window has Disappeared
The eMoji window no longer shows up. I have it enabled in System Preferences and the eMoji icon is in the Menu Bar but selecting - Show eMoji and Symbols - doesn't give me the eMoji window. Selecting - Show Keyboard Viewer - on the other hand, does bring up the keyboard viewer. So where could the eMoji window have gone?
iMac with Retina 5K display, macOS 10.15