Sonar X3 - Suddenly No Audio

Hi all,
I am using Sonar X3 (fully updated) on a Windows 10 laptop.  I am also using an M-Audio Fast Track Pro with the latest drivers installed (ASIO).
 
I have been recording multiple tracks in Sonar with no problems at all.  Then, out of nowhere, there is suddenly no audio coming from my BX5a monitors (which are plugged into the M-Audio).  All of the meters are showing output when I attempt to play back the audio, but no sound is coming from my speakers.
 
To help troubleshoot, I loaded a different Sonar project which also utilizes my Fast Track Pro and everything works fine in that project.  However, my original project which experienced the audio problem still will not produce sound (although the meters are showing output).  In addition, I saved the problem project as a Cakewalk Bundle and opened it on my desktop (utilizing my M-Audio again) and the problem project works with no problem.  However, it is still not functioning on my laptop.
 
Does anyone know how in the world to resolve this?
 
Thanks.
 
Matt