In all versions of Cubase I’ve used, making a new midi recording automatically opens that part in the Key Editor, but this isn’t true for me in C9. I have disabled the Lower Zone, and set all preferences to open in a new window. Am I missing something? Or is this a new expected behaviour? Or a bug?
EDIT - steps to reproduce:
Cubase 8.5 or earlier
Blank project
Create instrument / midi track
Record midi
double click to open key editor
Create instrument / midi track
Record midi
New part opens (updates) in key editor
Cubase 9
Blank project
Create instrument / midi track
Record midi
double click to open key editor
Create instrument / midi track
Record midi
New part does not open (update) in key editor