Hmmm, interesting, as I had the exact same issue last night. I was recording a guitar part (no punch in's), saw the waveform drawing as I was recording. Hit stop when I was done, and the waveform disappeared. No sound, no waveform.
 
This happened about 3 times in a row. Figured it must be some random glitch. On the 4th take, everything worked as normal, and didn't have any issues recording the rest of the session.
 
~Jeff

So, I thought the links would come through, but not quite.  If you click on the link you get a 404 not found message.
However, if you remove all the gibberish at the end of the link, starting with the very first % sign. (percent sign)
then you can see the video and the issues I am having.
 
another test.
https://youtu.be/bra19tA_1yI
 
Thanks,
Bob
 
 

Well, it sure doesn't look like you're doing anything wrong, and it doesn't look like something where you can provide a recipe to reproduce. Does it happen on only this project, or other ones as well? Is it an older project? It does seem like all these problems are related, so I get the feeling if you solve one, the rest will follow. I'm reaching here, but...try saving as a bundle (cwb) file, then opening the bundle file. I hope you get this sorted out.

https://youtu.be/dTz7XoC8TQ4
Ok, that one worked.
1.Here it is again. sonar vanishing record take
https://youtu.be/bra19tA_1yI
2. another example of the same
https://youtu.be/jpGYPdeY3EA
3. Sonar normalizes and shuffles clips?
https://youtu.be/sqoeGbswRzs
4. Sonar rogue clip issue.
https://youtu.be/cHLFmoI1NV0
5.  a couple more videos, these probs must be related somehow
https://youtu.be/rdg37--fp_k
https://youtu.be/dTz7XoC8TQ4
https://youtu.be/CCw-KB2QcMc
 
Hoping these came through.  Not expecting that you watch all or even the a whole vid, but maybe we can fix a bug or two.  It's taken quite a bit of time to go though these screen capture processes.  Each time I sit down to 'make and record music' my session ends up doing these troubleshooting videos.
I'd love to get on with it!
Thanks,
Bob E
 
 
 
 
 
 
 

I can see the videos just fine...that's why it's so puzzling. Things like disappearing tracks and jumping cursors have never happened to me, so unfortunately, I can't say "oh yeah, I've seen that, it's because blah blah blah."
 
Try the bundle thing and also, I'm still curious if it's unique to this project. IOW if you were to start something from scratch using a newer template, can you still get these things to happen.

Thanks Craig, I'm a big fan by the way! Sonar Tips and ezine, Sweetwater interview, etc..
I did post a few more links, maybe sheds more light.

Not unique to any one project.  There are several projects in the videos, and they are new projects. One of the files was created with a default Sonar template, (4 audio track). I only added Addictive Drums, simple instrument track, and a guitar track with an amp plugin. That's all.  Not even my own template.
I will try the bundle.  Puzzling as heck!
Thanks
Bob E

the disappearing wave for. Is it going to a take lane ? It looks like it is in the video (Take lane icon is light blue)
What are your recording settings ? Create new lanes on over lap ? Put new take in to tracks ?
I would also bounce the Melodyne data to the other audio clip (using bounce to clips/ it will heal the clips).
I never use region FX then record over it unless I render that data first. But that's just me.
It may, if anything give you an idea on whats happening to your material.

I too have suffered from the disappearing recording, I feel your pain!
 
Here's what I came up with a few years back, hope it helps.
 
http://forum.cakewalk.com/Solved-Recorded-clips-randomly-disappear-when-recording-stops-m2764221.aspx
 

Thanks for the input.  Only one of these files did I use Melodyne, and I don't believe that's the issue, as I don't use it very often.
I am using 'comping' as my record method.  And set to 'store takes in a single track'.
 
Check this one out, if you would.
https://youtu.be/dTz7XoC8TQ4
 
Audio dropout while recording?? I'm not recording. Error message says 'degragment' my drive. I've tried 2 drives. An SSD and a 7200rpm drive. Both less than a year old. I have no recording issues with any other programs except sonar platinum.
This is a default Sonar template.  Only added Addictive Drums and Trilian Bass virtual instruments.
This may be a different problem, but somehow I believe it's related, somehow.
 
And thanks Millzy for the link.  I did come across this in my endless hours of frustrated troubleshooting. I unchecked 'allow arm changes during recording/playback.  No luck.