It’s just a small bug, but an annoying one:
In Nuendo 12, names in the ADM tool were truncated if the window was not large enough to display the full name. In Nuendo 13, you can now only see a dot. Only when the window is enlarged to show the full name does it appear. Apparently the ADM tool in N13 no longer truncates.
I thought some of my buses were not connected. Until I got the idea to enlarge the window.