Audio render and replace error

Hello, I have nested the audio on my video and tried to render and replace.  I have done this many times and it works most of the time.  This time it does not.  It appears that Premiere is throwing up two different error dialogue boxes but they are gone in under a quarter of a second, so I have no idea what they say.  Is there work around for this, or a preference I can reset or something? Thanks.