I recently purchased V Collection 5 and since using it I've had pretty major stability issues.  Sonar either crashes at startup when opening projects using Arturia instruments, or it crashes randomly while I'm working with them.  I've been sending in fault reports so hopefully someone at Cakewalk will notice, but I also wanted to ask here if anyone else has experienced this. 

The VST3 versions had stability issues in Sonar at one time. If you are using X3 use the VST2 versions. If you have the latest versions it should be OK with VST3.

There have been a lot of updates to the V collection so make sure you are up to date.

Thanks Glyn.  I'm up to date on everything, but I'll definitely give this a try.

I concur on the suggestion to try the VST 2 versions.  I had issues for a while with their V collection 3 VST 3 plugins.
 
By the way, there is NO audio difference between VST 2 or VST 3 versions.
 
Bob Bone
 

I have the V Collection - have only ever used the VST2 and i don't think I can remember ever having a crash with any of them - as Glyn said there have been a lot of updates - only updated a couple of mine last week as I had been away for a while.
There is some really good stuff in this collection - yesterday I put the Synclavier into a project I had been struggling with and found something usable almost straight away - Hope all goes well
Nigel