Using the 64-bit version on W7 and can’t produce any problems in standalone or in DAW (Reaper).
When you say ‘drop it on the track…’ do you mean into a DAW track or onto the Song Track in EZkeys?
Could you provide more info…what version number of EZkeys? 32-bit or 64-bit? Standalone or in DAW? What MIDI are you using? Is it just that is ‘sounds’ like it’s not in the same key or are the names of the chords in the Song Track different?