Does anyone else have hung notes using external gear with scaler in FL studio

Hi im using the Montage keyboard with scaler and for some reason when I have scale lock on and using it in FL studio I get hung notes (eternal sustain). It does not happen if I only play scale notes in the right hand or chords in the left but does happen every time when playing both right and left hands.

It does not happen in Ableton

Has anyone seen this?