For whatever the worth - I had sent a malfunctioning Presonus AudioBox 1818VSL audio interface back to Presonus for $145 worth of repairs. Two weeks later, it came back. I pulled it from the box and immediately hooked it up, and it STILL had the same exact issues, even though the repair ticket indicated that they apparently replaced 2 different circuit boards in it.
They did generate a prepaid shipping label for me to send it back, and I am guessing they will replace whatever is left in it, so I am sure it will work out fine.
The point is that all of this stuff can go South at times, whether Cakewalk or Presonus or any of the music stuff. Issues exist with virtually EVERY single DAW company's offerings. When you get to a point where you have deadlines and time-sensitive deliveries and such, it's time to invest in creating and maintaining protocols for handling issues when they arise, such as:
1) Creating a system restore point prior to applying a major software update or configuration change.
2) Creating and implementing a workable backup/recovery process, consider additionally having an offsite copy of things - Someone just had their entire studio cleaned out overnight, and lost something like 10 YEARS of projects, because there was no offsite backup. That is a not likely scenario, but it DOES happen. (fire/flood/robbery/hardware are all possibilities too)
3) Learning to separate issues, to be able to work them independently and efficiently.
4) Understanding how to roll back a Sonar update, in case one introduces a show stopper bug to your flow
5) Understanding the likelihood that a given error is local to your setup/configuration versus global to the community of users. (example, ProChannel not working would have been quite prominent in the forums if that were some global issue - that it is NOT being complained about by folks in general would point ME to consider that it is something I might have accidentally done to myself)
6) Being willing to engage with whatever combination of forum folks and Cakewalk support it takes to get an individual issue has a workaround or was resolved - whether the issue was operator error, some configuration change needed, or a bug.
To the OP - if you ARE willing to engage in the process, I will do my best to work with you on figuring out how to get you past your issues - so please let me know if you wish to do so, and I'll invest the time into trying to help. (I believe others in the forum would do so, as well) :)
We might not be able to resolve all of your issues, but if they can be resolved through anything short of a maintenance fix by Cakewalk, these forums are a good shot for getting most things squared away.
Bob Bone