records directly killed

Hey guys,
I have a very interesting problem.
 
If I record something, the signal can't get saved.
 
Let me explain. I use a standardinterface (USB Audio Codec) with 1 in & 1 out. Audiodevice and microfon are connected and in windows activated. Now I check in sonar the Timing-master-record-point and all other things in the preoptions. Everything is good.
If I start the record of an audiotrack, I can see the Signal. Also the scale shows the Signal, I hear it with the input-echo and vst-plugins working (live wile recording!) so, everything is, how it have to be.
 
When I stop the record, sonar should save and show the recorded takes. But, after the countprocess the complete Audiofiles are only noise!!! sonar saved an noisefile and not the original audio.
 
It goes on...! I can record the Signal if I use an Aux-Track as the output of my recordtrack!!!! When I activate the Inputecho of the recordtrack, the recordtrack will send his inputsignal directly to the aux-track. If both in recordready-mode, sonar save two files. one with noise in the recordtrack and one with my original audiosignal in the auxtrack.
 
It is not realy clear for me, why its happen and I use Sonar in recording for 14 years. So I supposed now, how it works. I have new installed a Sonar Platinium version 2 weeks ago. Maybe thats the reason, but what could be wrong? I never seen this before! :/
 
I hope some of you can help me. It's very irritating and handicaped my workflow.
Best regards,
Dusty
 
P.S.: Sorry for the bad english. ;)
 

The waveform is not the redorded Signal after recordingstop. wile i'm record, it shows the original Signal. After stop, the clip in the recordtrack shows a line over zero with short dirac-impulses but no reorded signal.
Also in an audioplayer it is noise. So it write the noise directly in the file.
It isn't a routing problem. I checked everything. the interesting moment was trying the aux-track. It seems, that sonar have a problem by saving the files when the input of the track an extern input is.

I never seen that before. And new install sonar dosn't help! wtf?!
have no one the ssame problem??? :O