In Ableton Live 11 the only detection method that I can get working is playing a midi clip on the track where scaler is loaded. Dragging audio (.wav) from the desktop or from an audio track in Live to scaler is possible but gives no results. Dragging a midi clip from another track to scaler is not allowed. Routing audio with the sidechain to scaler gives no result. Opening an audio file with scaler is allowed but gives no results.
In Ableton Live 10, dragging the same audio file (.wav) to scaler works, the chords are shown. Dragging a midi clip to scaler is not allowed. Opening an audio file with scaler for detection works.
Using Scaler 2.3.1, Windows 10, Live 11.0.2. ; Live 10.1.3.