I am trying to render a BIAB file to .wav and there are timing issues happening. The tune uses RealDrums and RealTracks bass and guitar from the jazz ballad set. My tempo is 70 bpm. The file plays great in BIAB. After I render it to a .wav file, the guitar jumps the beginning of the tune by a beat and doesn't straighten out until the second measure. I have tried it over and over, and it continues to produce the same result.

Has anyone else had this happen? And how do you fix it?

Thanks,
chillbone