I have no experience with Cubase, but can you manually put in the settings
of your choice? Instead of automatically selecting “Get from video”
If so manually input specifically 23,976 fps for your 23,976 film and see
if there is still a mismatch, Along with making sure the KHz and Kbps Audio settings match.
Steve Rhoden (Cow Leader)
Film Maker & VFX Artist.
Owner of Filmex Creative Media.
Samples of my Work and Company can be seen here:
https://www.facebook.com/FilmexCreativeMedia