Hey, MM...
I am asking this because I am trying to troubleshoot what I think is the same problem which has been indeed annoying the pizzle out of me since installing SPlat.
Are you able to close the program quickly (as in the Sonar window closes as soon as you... well close the program) but then cannot reopen the program right away? So it closes but when you try to relaunch Sonar it refuses to for a while (in my case it's starting to be almost a minute before I can relaunch)?
If so... are you using any Sonitus (or other DX plugins) or maybe any 32bit plugins in the project?
How large is the project?
The reason I ask is because ever since I installed SPlat it seems I am experiencing the behavior described above and the larger the project the longer it takes before I can relaunch the program. However if it's a smaller or empty project it doesn't take nearly as long before I can relaunch.
At first I thought it was simply correlated to the size of the project however someone mentioned a while back that older/32bit plugs might cause the program to not "release" itself from whatever the frack is going on in the background.
Considering in pretty much ALL the larger projects I've been working on this year (since I've installed SPlat) use Sonitus plugs of some sort and those are the projects affected by this issue that could be the problem.
However I can't really check this because by the time I launch and load the task manager I'd imagine due to the current wait times I might not even get a chance to see whatever is hanging before it goes away.
For those who will point to the old M-Audio driver issue that used to cause hangs... I use a Focusrite interface which has never suffered from that issue (AFAIK) and the only other M-Audio device I own is an Oxygen 25 which uses plug and play windows drivers (so no M-Audio driver weirdness in play AFAIK) AND that device hardly ever gets used and is not connected when this occurs.
Cheers.