Same here, see Scaler 2 - No response on one Mac, works fine on the other! for details.
In that thread apparently after several restarts the issue sorted itself out for the guys with MacOS but no such luck with Win 10, up to version 2.0.6 now (2.0b7 VST / 2.0b7 VST3) with no output from Scaler 2. Scaler 1 works fine.