Transport unresponsive

Using the latest version of Platinum...  After working fine for awhile, after hitting play, the transport will move and will not stop with the space bar or transport button.  Audio will not play.  It does not lock.  Mouse works, buttons depress (they don't do anything), save works (luckily).  I need to Alt-Ctrl-Del to shut down Sonar.  Just restarting Sonar vs rebooting doesn't seem to make any difference. 'Stop audio engine', Esc, doesn't do anything.  (Using Focusrite Scarlet 2i4).
Any suggestions?

Had the exact same problem with a Focusrite Scarlet 18i20. That was the final straw in my month-long attempt to get it to work right on my system. Swapped it for another interface and the problem is gone. It must be some type of driver issue with the Focusrite stuff for certain builds. Which driver version are you running? I had tried both 4.15 and 4.26 (beta) but had the same problem with both after a while. I am also running Win 10 64 on an Intel PC.
 
Edited to add I wonder if any of this is tied into when the bakers introduced the MIDI note chase feature. That's a guess on my part so please nobody take it too seriously 'cause I honestly don't know how that would be a problem.
 
 
 
 

I have a Focusrite 18i8 and its been solid here.
It could very well be a corrupt project, have you tried another ?

SH
Using the latest version of Platinum...
Any suggestions?

emwhy
Edited to add I wonder if any of this is tied into when the bakers introduced the MIDI note chase feature. That's a guess on my part so please nobody take it too seriously 'cause I honestly don't know how that would be a problem.

Something to try in both cases is roll back. This may help establish if the problem is as a result of an update in SONAR.
 
Also referring to the "latest" version is not very helpful. Does that mean the 2017.04 Early release or the 2017.03 Production version? My preference when identifying a version is the full version info from the about screen. The current early release is 23.4.0.31 x64. That and knowing if it is Home Studio/Artist/Professional or Platinum helps fully identify which version of SONAR the question is about.

In this case it is not clear why one machine is running Professional and the other is running Platinum. Unless both were retail purchases and not an upgrade from Professional to Platinum, why not run Platinum on both machines? There is no advantage to running Professional if you only have one license. If there is no MIDI, it would not seem MIDI chase could be an issue.

Scook to answer your concerns, my home machine runs SPLAT because I own it and do more in-depth work with music and soft synths through my side business. My work PC runs Professional because it is a broadcast facility specializing in voice overs and post production work with more sound efx and royalty free music already provided to us from various libraries. We felt that SPLAT was overkill for that and since the company pays for the license at work not me, they didn't want to spend the extra $$ since we have multiple editing suites that require SONAR. Plus Cakewalk gave us a good deal and has been very fair with us when it came time for upgrades. Way more so than Adobe.
 
I threw the note chase thought out there as strictly a hypothetical and really didn't think it was related.
 
SH are you running the Focusrite on a USB 2.0 or 3.0 port? I had the problem at home with the Focusrite on both types of ports, but at work the Steinberg was on a 2.0 port only.