Midi sync confusionn in overbridge?

im a n00b so forgive me…so i have a microbrute synth that i want to sync to my digitakt so i can tweak sounds from the synth live and have drums playing from the digitakt that i can also tweak but when i connect to ableton and use the overbridge vst i cant hear any signal from the synth in any midi tracks, only in audio tracks(like 1-8)…what am i doing wrong?

connecting the digitakt to ableton via usb****

Midi does not transmit sound, only note/parameter data.

You’ll need to either connect the synth to an audio interface or connect it to the Digitakt audio input and enable those tracks in Live.