try emptying your picture cache.
there may actually be an audio file created but no graphical representation.
this has worked for me in the past.

John


If what is being said is happening something is really wrong. This is a fundamental ability of any DAW to record reliably whether it be MIDI or audio.  The OP should submit a problem report ASAP and also contact tech support ASAP. This should not be accepted under any circumstances. If it ever happened to me I would be screaming loud and often. 

Hi John, I have contacted tech support and will wait for their response, I agree with you this is not acceptable. I was screaming big time after a really nice bass take i laid down didnt 'stick'. I couldnt believe it when I hit the spacebar to stop recording and my clip just evaporated!!

try emptying your picture cache. there may actually be an audio file created but no graphical representation. this has worked for me in the past.

Hey Mike cheers, haven't played with the pic cache yet but the audio is definitely not there because on playback there is nothing.

millzy

John


If what is being said is happening something is really wrong. This is a fundamental ability of any DAW to record reliably whether it be MIDI or audio.  The OP should submit a problem report ASAP and also contact tech support ASAP. This should not be accepted under any circumstances. If it ever happened to me I would be screaming loud and often. 

Hi John, I have contacted tech support and will wait for their response, I agree with you this is not acceptable. I was screaming big time after a really nice bass take i laid down didnt 'stick'. I couldnt believe it when I hit the spacebar to stop recording and my clip just evaporated!!

Hi Millzy you are handling this well. I truly feel for you. I hope its a simple fix. 

One of the things I have to consider when recording a session is risk. In this case, would be risk of the DAW. In the last several sessions I've had to go back to X1 or over to a completely different DAW just to track, then import the audio into X2a for mixing. All for different reasons, but the primary reason is unpredictability of X2a. In the case of the missing track, I've not run into this one, specifically, but something very similar. The picture cache was the culprit. Seem like an ill-fated design, maybe left over from earlier versions perhaps where the engineer didn't have the horsepower in the PC to render the "waveforms" (more appropriately named, btw).

This also happens to me on almost every session. I'll do a few takes maybe as many as 5 or 6 though sometimes less and then a take will unexpectedly only render the first part. The length varies from nothing to nearly the whole of a five minute track. I'm only recording one mono track at 44.1

Important to note that this happened to me using every version of Sonar since 7 but I also had it happen as far back as logic 5.? on different hardware. The one constant is my RME sound card.

I suppose I've just come to accept it as one of the drawbacks of DAW recording as opposed to dedicated digital hardware recording.

I have seen this unpredictable behavior especially when punching on an existing track.  Everything seems to be working - I actually see a wave form generated on the screen in the punch area.  Stop recording and the graphic disappears and nothing was recorded.  Re-do the exact same punch (without changing a single setting) and it works just fine.  

This is a totally random (and thankfully rare) problem that was also present for me in X1, and with a different audio interface.

 I've experienced this also.
 I just opened a project in X2 to do some testing.
 I noticed that the Punch in/out button was lit in the control bar and the in/out selection spanned the entire project.
 Note that I have never manually turned on the punch in/out function. If I disarm the punch button and try to record, the wave form will draw and when I stop the project, the wave form and audio will disappear. 
  If I leave the Punch in/out button lit and try to record , it works fine. The audio doesn't disappear. 
  This is happening on a newly created audio track with no other takes on it. 

 I just discovered that if I deselect "Allow Arm Changes During Playback/Record" in Preferences under Project/Recording mode,the problem goes away. 

Thanks all for your suggestions etc I'm out of town until Monday so I I'll keep tweaking when I return. In the mean time I've had no response from tech support. I can't wait to get to the bottom of this, I'm convinced it has to be fixable. Stat tuned folks.....