Hey!
My first post here as I just bought Nuendo 7. 
So… I ran into the same problem with it crashing as soon as I go in to the Offline Process History and press play.
Are you still having the same problem or did you solve it somehow?
I would so much hate if you all just learned to live on with it crashing. I´ve read about everywhere that the support from Steinberg seem to suck big time… if this is the reality that one have to face everytime there is a problem like this, then I deeply regret buying it… cause now its 2017 and you had this problem in 2013…
This was one of the features that made me buy it…
Thank you for your time…
//Ted Krotkiewski