With MME selected as the driver, when I click on a midi note in Piano Roll Editor, the only way I hear a pitch is if I have either the Microsoft Midi Mapper or Microsoft GS Wavetable Synth selected in the upper right-hand box (those are the only 2 selections available), and all I get is a piano sound on all tracks, except for drum sound on track with midi channel 10, even though I have checked the "re-route midi playback to default dxi/vsti synth below (with the vsc dxi selected). When using ASIO I do not have this problem; any note clicked on will sound with whatever instrument is set up for that track.

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BIAB/RB 2018 PlusPak. Dell Inspiron23 running Win10, 12GB RAM, 2.5GHz i7, Presonus AudioBox USB interface.