The latest Octane Blender crashed when I tried to rendering a part of my scene, which worked fine in 17.6/2018.1. I isolated it to an object that I have duplicated along a curve (DupliFrame).
I created a test .blend with just a cube duplicated along a curve (attached) and that crashes as well when trying to render for 17.7 (but works in 17.6).
Running it from a console the error it gives is a Stack Overflow exception.
NB: If the Octane Server isn't running that error ("Can't connect") will be outputted to the console before the crash, but not shown to the user.
A. Win 10 Pro 1809
B. GTX 1080 8GB
C. 32GB RAM
F. 2018.2 / 17.7
G. Blender Studio 2.79 2018.2 (Latest from Download Section)