Last Sunday a had a “live” (Jazz club) session. As a long time Steinberg user I used my very much loved Cubase Pro 9.01 to record the session.
A 2,5 Hours session, 12 tracks, doing a latency free monitoring job for FOH controlling it with Cubase IC Pro. No problem at all!
Recording done on 2x UR 824 1x OctoPre LE, Focusrite and Neve pre-amps using only Custom build microphones. Just a Mac Mini 2011 Quad Core running Mac OS Sierra
Operating system? Comp specs? Otherwise there’s no reference.
sounds interesting recording… you should upload video 
except a MC gui glitch’ cubase 9.01 seems stable here on my bedroom studio too,although i didn’t use it much yet.(still on C8.5 on studio i work full time, its time to tell them to upgrade 
)
Well not here!
I have had 6 crashes in 3 hours with a little project. Trashed all my preferences and started from scratch, and the trying to import Midi Kentics XML files for Composer Tools, the second I hit the open button in crash again.
It’s pushing me in the arms of Logic - so to speak!! 
It’s all good here.
Occasionally when I open a file from the desktop I’m getting a white screen… have to force quit and try again from within Cubase. no crashes within Cubase though.
Have started sessions in C9 and have loaded sessions from 8.5 .
Several hours on 9, and zero issues. So far it does what I need and is dependable. Can’t ask for anything more.