Yes, I upgraded and am on Cubase 8 Pro, and yes, there have been a few ‘minor’ problems, but, so far, nothing major.
The ‘biggest’ issue I have, and I do mean the ‘biggest’ is to do with the window sizes. Everything is bigger by about 1/3. All the VST windows are nearly full screen, the Transport Panel is 1/3rd bigger, and the track sizes are bigger. And no, you cannot resize any of these in the Preferences. I have tried.
The problem seems to be with the width of the ‘base’ or background screen, you now, the screen behind the screen you use. Why O why did we have to have 2 screens? Any way, the background screen is too big so all the sub-windows are big because they are a proportion of the background screen.
So, how do I know this? Very simple, if you move things off to the right of the screen they completely disappear off screen. This doesn’t happen to the left, up or down, just the right.
I’m thinking that for some reason the background screen has defaulted to the wrong screen size or it is trying to use a split screen, either way its annoying. Doesn’t stop you using it and, so far I haven’t found any VST’s that do not work OK.