Bluetooth MIDI Keyboard Stuck in Mono (No Polyphony / Chords)

I’m experiencing a polyphony issue in n-Track Studio Pro (Android) while using a Bluetooth MIDI keyboard.

​When I press two or more keys simultaneously, the instrument does not play chords or multiple notes. It only triggers a single note at a time (monophonic/legato behavior).

It happens only with the bluetooth keyboard or also when you play on the screen keyboard? With a specific instrument or also if you create a new test piano track? If it’s specific to a track, you may have either enabled one of the legato modes in the Synth or Sampler settings, or you may have inadvertently set the Polyphony setting to 1.

Flavio.

The issue happens only when connecting via Bluetooth MIDI.

On-screen keyboard works fine with full polyphony.

USB cable connection works with zero issues on all instruments.

The problem occurs across all instruments (including a newly created default piano track).

I pair the keyboard as a BLE-MIDI device directly within n-Track settings. It sends MIDI control data and notes, but it limits performance to single notes (monophonic) over Bluetooth. Cable connection remains completely multi-touch/polyphonic.