Windows 10, latest version of Finale:   A choral piece with piano accomp.  Metronome marking at the beginning 1/4=132.   Playback with metronome inside Finale plays correctly.   Export piano part as a WAV file to DAW (MixCraft 10).  Setup with metronome @ 132.  Plays fine for awhile, but then the piano drifts away from the metronome.   Never happened before.