WP 5 beta: Editor visual issues on fresh install

Hey guys,

Just installed WP 5 beta and encountered issues very quick into testing the new editor.

This video explains better than words what the issues are: https://www.dropbox.com/s/l1yfqwh9eoeu3c6/wordpress-5.0.mov?dl=0

My setup:
MacBook Pro (Retina, 13-inch, Late 2013), macOS High Sierra 10.13.3
Google Chrome Version 69.0.3497.100 (Official Build) (64-bit)

Best regards,
Mihai