Thanks for posting on forums. Please right click on the audio clips that do not have sound and go to Audio Channels option and in Source channels tab select left and right respectively in the drop down list. This issue may arise if you there is "none" option selected in source channel tab. Please update whether this resolves your issue or not.
You are my God!
Thanks for the help, the only working answer accross the entire internet!
I have no clue what caused the issue, but now I know how to fix it.
Again, thank you!
It was my pleasure to assist you.
this solution do not apply when we have to change the audio speed, even checking the channels.
I have here , some clips that i had to change the speed from 100% to 108% maintained the pitch. this mod in the clip, is not supported by PPro CC.
I have in this long documentary i´m making the post production, and only the clips are dropping are ones with the speed changed from 100% to another value, faster or slower.
For resolve this issue definitively, i undo the speed, modification , go to audition, made the speed modification there, save in another file and re-import to premiere. This is a bug related to a non speed standard file .
My Specs : Supermicro Board, Quad Opteron 16 cores each, (512 Gig 1866 DDR3 Ram, Nvidia 980Ti 6Gig 384 bit DDR5 RAM - 2015 ugrade ), Presonus 8 x 8 external Firewire audio interface, under Server 2008R2 Enterprise, all drives SSD, all files locally, a machine capable of rendering an entire project in half the time you have on the timeline. For example , this documentary is 78 minutes long, it renders it all with everything I've done it in about 39 minutes.
This machine works this way beautifuly since jan 2013, CS5.5 fist install , them CS6. Now with CC2014.2 this issue appears.
The reason of lack of power on hardware is absolutelly not the reason indeed.