unknown device created during OSD

I'm running a simple OSD of Win7 through SCCM 2012.  I'll boot from a CD/PXE and when my WinPE connects and I select my TS to run, it creates an "Unknown" device in SCCM with the MAC address of my target machine in it's properties.  After the TS completes, I have another device created with my proper machine name in SCCM, client installed, etc.  The original 'unknown' device is still there. 
 
Did I miss a setting someplace that would cause this behavior?  I would have expected my completed TS would then update the original "unknown" device so that it has the updated machine name etc.  I don't want to have to delete a bogus 'unknown' everytime I run an OSD. 
 
 

How long have you waited for it to clear?  I've seen both records (a real record for the computer and the Unknown Device record) but the Unknown one usually goes away 30 minutes to an hour after OSD completes.

Very interesting.  I personally deleted them after 45 minutes (ish) so I may not have given them time.  I'll keep an eye on it.  If the system self cleanses that fast, that's great.  I can live with that. 
 
Thanks!
 

This is normal behavior.  Whether this is a feature or a bug is up to debate.  Jarvis has posted about this:
 
Initial post
http://verbalprocessor.com/2012/04/06/unknown-computer-bug-in-configuration-manager-2012/
Update
http://verbalprocessor.com/2012/04/17/unknown-computer-bugupdate/
Final post
http://verbalprocessor.com/2012/05/07/unknown-computer-bugfinal-update/
 
 
I hope that helps.
 
 
Nash

Thanks npherson.  That's interesting.  

waiting for a fix on this. i get about 75 per week. i manually delete them