If I open an audio-track in the Sample Editor (Cubase 9.5.41 [and before]), the left-hand inspector panel shows a list of tabs which includes VariAudio. This occurs for both mono and stereo audio files (as expected).
However, if I double-click an audio-track so that it opens in the lower pane of the main project window, the tabs appear in the inspector panel for stereo tracks, but not for mono tracks (i.e. the panel is empty).
Is this something I have set up incorrectly, a bug, or something peculiar to my system?