Yeah, this has happened to me on a couple of occasions during the monthly updates last year. One update had some of my soft-synths starting at didn't times and finishing later when I stopped the project. This was fixed by the next update - which unfortunately blew out another VST synth I had just bought. So I was without the new updates for two months but it was great to be able to easily go back to a working version. I do think there should be some kind of refund or end of year discount if a member is for whatever technical reasons they are unable to use the 'paid-for' update. At the end of it though, Plt is working really nicely so I can't complain.
FWIW, I gave up on Quad Capture on my setup. Maybe it would work better now with Win 10 but frankly, I had it up to you know where with the audio card suddenly dropping from Sonar, or not being found upon a restart - usually caused by the drivers which were rarely updated by Roland (support HA!) and pretty obsolete - It was on-going. Best investment on my time was buying an RME UFX. Even if Sonar crashes - which is still rare - the drivers drop out of the system almost immediately and I can restart Sonar straight away...even if on a rare occasion the drivers get stuck, ending the task in TM has them closing immediately. Goodbye to having to between 5-8 minutes for them to be released.
Perhaps as Craig mentioned, Win 10 works with them better but I wouldn't work with it again.