Exporting Sounds Different Depending on Computer Used

I work on a podcast which has intros and outros with dramatic drum music on one track and a voice over on another track. Dynamic processing is used to duck the music under the voiceover.  On the audition session file it sounds perfect to how we want with the effects applied on the multitrack mixdown. When I export it to a new wave file on my Dell Inspiron 13 7000 laptop the music volume drops out almost completely/sounds muffled.  When we export it on my co-worker's desktop from the same file, exact same export settings, the resultant wav file sounds perfect. He opens up my files that I created on the laptop on his PC via drop box and my files all sound like garbage. If I open up his desktop-created files on my laptop, they sound great. What in the Adobe Audition program would account for this where only my laptop seems to not be able to export correctly?