I have various audio tracks experiencing the same issue in the latest version of Sonar platinum.
 
If I SOLO one of them and move the transport back and forth during playback I get some really annoying crackles when I playback a clip, and it's likely to drop out.
If I change the clip to "groove clip looping" the crackles immediately disappear everything is fine.
Then after that if I bounce to clips the crackles immediately come back!
 
I have the latest firmware drivers, yada yada. I have no effects, automation or sends in this track and it doesn't appear to be a volume overload issue.


Any ideas?

Tried altering BounceBufSizeMsec does nothing.... Latency settings does nothing.
It's weird that it works well as a groove clip.

I am experiencing some odd behavior as well that I did not run into prior to Cambridge.  I have been blaming it on simply running out of CPU horsepower, but in one case CPU usage was <30% .... the whole clip containing the lead guitar went completely silent when I tried to add an effect to the clip, and remained silent after removing the effect, and only by shutting down and restarting did the clip come back to life.  Weird!!

Looks like you have a completely different issue to me Greg and my issue has been from the start of Platinum. I have no resource issues such as CPU and it only happens with audio clips that aren't groove clips.

I guess this is an in an enigma otherwise I would have got a zillion suggestions by now...

When you say "move the transport back and forth during playback" do you mean that you're scrubbing the audio?

Nope... Press play... Then just jump to different areas of the track whilst it is playing (music will automatically start playing from that position). Thx

I think I resolved it although there are a few mysteries!

My project was set to 48/24.

I decided to select a single track and do Utilities -> Change Audio Format and change the new bit depth to "24" (I ticked dither). Then it behaved (more or less) normally again...!!!
 
This is strange - all the tracks got processed when I changed the Audio Format on a single track rather than just the one - can anybody confirm that this is this normal?
 
... and I still don't know what was going on before?
 
 
<resolved>
Now the situation has changed (which is much better but still not resolved)....
 
I often get just one single big click when playback commences like a power surge, when I move the timeline around during playback..  which maxes out the master bus. I don't know if there's a way to silence this apart from put in a limiter. I guess it's drivers/firmware but I'm definitely on the latest. I'll try disabling hyper-threading as well (although I don't see any evidence of it being the issue in task manager)... Any other ideas please let me know!
</resolved> = This was a plugin so it is resolved...
 
Does anybody have any comments to make about the above?
 
Thanks..

Which plugin?

I think it's probably a compressor that is peaking too much or something that needs adjusting not to worry I don't see a bug.. Thanks.

My questions are

1) Why would changing the bit depth resolve tlthe original issue via change audio format? It more or less makes sense but wondered how I got there in the first place...

2) Does 'change audio format' do it for all tracks? I selected one track.

Would be nice to hear peoples take...the issue is resolved but I want to learn from this...