Page Mode of Score Editor blank

Must be missing something fundamental but I cannot get ‘Page Mode’ in Score Editor to populate. Here’s my process:

Select a MIDI part > Ctrl + R> ‘Scores’ menu [can see notation] > select ‘Page Mode’.

Nothing. Blank. Clicked everything on the screen, gone through all set-ups.

What am I missing?

Thanks in advance.

First thing to do: https://helpcenter.steinberg.de/hc/en-us/articles/206618850-Troubleshooting-for-Cubase-Nuendo-and-Sequel-on-Windows#preferences

Add your system info to your sig, or at least post it in your message.

Ta.

Have added spec to sig and will try update.

Cheers.

Update didn’t work. Have submitted ticket.