Hello,
I'm mixing audio. In this song all of the audio files are sounding properly except 3 new drum tracks I created today.  I cloned the original single drum track 3 times and imported the new audio into the new clones.  The new tracks have the same FX setups as the original track I cloned and all 3 new tracks are in solo mode while all other tracks are neither muted nor soloed.  The 3 new audio files are silent while all other tracks sound properly.
 
I imported the 3 new tracks into another song and they sound properly so nothing's wrong with the individual audio files.  I also created 3 new audio tracks in this song I'm mixing and put the 3 new audio files into them.  Still no sound.
 
Sonar is up-to-date.  I have restarted my computer.  What do you recommend?  Thank you!
 
 

Thanks for you attention but I figured out what I was doing wrong.   When I created the new audio tracks I forgot to reset the audio automation which was set at zero.  All's fine now..
 
Thanks again!

I find it very empowering if I ever figure out my own problem.  Which is about 1% of the time.
 
Glad you got sorted out.