SONAR X3 MMC, clock source always reverting to "Audio", why!?!?

I am slaving Sonar to an external DP24.  To get this to work, I set the clock source as MMC.  Works fine until I use the transport controls on sonar and then MMC is broken.  I go into clock source to find it has been reverted to "audio".
 
Can someone explain this behavior, or is it a bug?

Hi Teal,
 
In order for MIDI Machine Control to activate the DP24, MIDI connections must be made (MIDI i/o to an interface). Make sure it is set to MMC slave in the MIDI remote control menu. If you have a device ID set to something other than "All" make sure that device ID matches Sonar's MMC device ID setting in Preferences - Project - MIDI. (If you do not have other devices connected that respond to MMC, just use the "All" setting on the DP24 for the MMC slave ID.)
 
In Sonar, open Preferences - Audio - Sync and Caching (Advanced) and set to "Full Chase Lock", "Do not Switch Clock Source, but Start if in SMPTE/MTC mode", and "Maintain Current Clock source and wait for timecode." In Preferences - Project - Clock set it to SMPTE/MTC (or in the Control Bar Sync module). 
 
With these settings, Sonar should send out MMC command to start to the DP24 at the now time's current location. The DP24 should then send out MTC and start Sonar's transport. 
 
I suspect you have "Switch Current Clock source and Start Playback" set in Preferences - Audio - Sync and Caching (Advanced). This automatically switches the clock to an Audio sync when pressing play in Sonar. 

I have sometimes used Sonar with my Tascam 2488 and midi MTC - Midi Sync.
 
I usually use it to expand my track count while taping a concert. For me, it works best to just use SPIDF to sync the clocks - skipping the midi sync. I usually set the Tascam 2488 as slave to my RME device. It works pretty well. I think sampling is tighter this way then with Midi Sync.
 
For me, I just start both devices... record a snare hit that I use to light up the tracks after importing the data to Sonar from the Tascam... and let it roll.
 
This is a very cheap way to take my track count to 16 without even using the ADAT input on the RME.
 
Edit: Haha - just looked - DP24 is just the new version of my old Tascam 2488

Teal 
Unfortunately, they did not give it any digital I/O!  

Well I'll be! They stole your SPIDF plugs! Bastards!! ha!
 
Oh well.
 
Guess Midi Sync it is then.

BTW, you're smart to know you have to clock sync the devices or you'll get crazy distortion when you bring all the tracks together. You're on the right track. I don't see a way to sync the devices short of Midi.

I don't do this anymore, but in the past I have been able to sync Sonar to my Roland VS1680 and have been able to make either the VS1680 or Sonar the master.  My point is that Sonar is capable of this, but I don't know your hardware and there are a lot of variables.  I will say that it too me several tries to get the settings right both in Sonar and in the external device.
 
In case anyone is interested, I was syncing so I could import tracks from the VS1680.

I typed "TASCAM DP24 Manual" into Google and found out the DP24 uses MIDI Time Code and MIDI clock for temporal sync. The bit-map array of MMC commands in the manual has the MTC and Generator commands crossed out. So to answer your original question "Why?!?," your assumption Sonar is "broken" is based on your not understanding how the DP24 works.
 
When I typed "slave SONAR via MIDI," the #1 link took me to the appropriate page in Sonar's documentation, which also includes links to "Sonar as the slave," "Sonar as the master," "Using MIDI sync with drum machines," and "Troubleshooting MIDI sync." These resources should help you get things working.

Anderton,
 
You'll have to forgive me, I am coming from a DAW with no online documentation and a private user forum.  Questions were answered by other users or by videos posted by other users.  Turn around time on queries to tech support usually took a week, so essentially useless.
 
Apparently you think you are the sherrif in these parts.  I understand you are employed by Gibson now; I think you should be concerned with your online presence and professionalism instead of starting a pissing match with an anonymous new user.  Companies tend to frown upon aggressive online behavior from their employees.  I know you probably see it as "pro Sonar" and defending the software from perceived slights, but I doubt your manager would see it that way.