SPLAT lagging before playback and recording...

IS there a recording count-in set up? A couple of measures that are counting down silently? That's all I got Ol' Pal.

I guess this issue will also occur if you have a plugin such as a limiter for example, that uses "look ahead". If Seth's answer doesn't help, check what plugins you have in the project.

I have been fighting this same issue for a while now. I have been trying anything I could think of and not having a lot of luck. One thing I did that did help more than anything else I have tried.... I turned on Plugin Load Balancing. I had tried this a long time ago, when it first came out and it screwed everything up. Now though, it helps. I have no idea why this would be. It's still not like it used to be but, it is better.
I have noticed several people complaining of this problem lately. Has something changed in Sonar to cause this. Sonar used to be very responsive for me, downright perky! I run an i5 with 8 ghz RAM, Win 10, with a Focusrite Saffire Pro 40 & Focusrite Octapre. HD's are defragged. I have not changed anything in my system, Sonar has just gotten slow and lagging. 

To be fair, I have noticed Sonar becoming more sluggish over the past few months. I'm definitely not getting the performance I used to, and it seems to be less stable as well. I get these playback delays bigtime, and also I experience quite a few hangs when doing things like moving the playhead large distances, or dragging groups of clips large distances and letting them go. If I start playback too soon after dropping a group of clips, Sonar hangs. It's almost as if it's taking its time to think after I perform operations like this, and I need to give it a couple of seconds to get its act together. I don't notice these things in fresh new projects when they're still small, but when working on older, larger projects I'm just not seeing the same performance I used to and I have to be continually careful not to make any "sudden moves" lest it freak the old girl out and cause her to throw a hissy fit 

I had a problem like this a few months back with a Focusrite Scarlet 18i20. Turned out their driver was the culprit, when I switched over to a beta version it went away. This was supposedly due to the fact that the Focusrite was plugged into a USB 3.0 port which shouldn't be an issue, but my machine had flaky USB 3.0 ports.
 
Try a different USB port if you can.
 

rodreb
Seth: thanks for weighing in. It may not be a widespread issue (yet) but, I have been seeing several folks bringing this up recently. Hey! At least I'm not alone! Ha ha! It might be something you would want to look into?

If those users who are experiencing the issue can rollback and find a build where the same project(s) are not exhibiting the behavior - that will give us something to go on.  Otherwise we're just stumbling around in the dark.

yorolpal
Lately the SPLAT on the voiceover DAW in our B room which is on a moderately powered (i5) but new computer has been having a 2 or 3 second lag before playback or recording when the spacebar is pushed.  Just started a couple weeks ago.  Have gone through and checked all the settings and all seems normal.
 
Any possible solutions will be much appreciated.
 
 

new (i5) CPU? Some are not as good as others or the BISO is not setup to take full advantage of the CPU.
just my 2 cents. 
 
Peace! :)
 

OK update,   Deleted the Picture cache but the same thing is happening.
 
This is a mix that has 62 tracks in it.  The project has EQ and Comp on almost every track.  I had SSL Comp, Q10 and Kramer Master Tape to mix through on the Mix 2 Bus.  Every time I started the project it will take 5 seconds for the project to start.
 
I opened a few previous projects with lesser tracks but more plugins, and I have no problems with the start time at all.
 
Edit > Preferences > Audio > Sync and Caching - (Playback read and write caching both = 1024 KB) , is this an adequate number?

• Enable read caching is unchecked
• Enable write caching is unchecked

I've had projects with over 75 tracks with EQ and Compression on each track work well before.  I'm puzzled.

Jesse G
Update:   I changed the playback read and write caching to 128 KB and this resolved the problem.  
 
Thanks for the great information everyone.  Thank you for the answer Seth !!!

No problem. If you can run 128 that's great, 256 shouldn't really cause a lag either.