Key editor display is missing notes

Hello.
My key editor is all wrong. It’s not displaying the regular keyboard, it’s missing notes.
It’s driving me crazy.
I went on AI to find a solution, it doesn’t solve anything.
Please help. I don’t understand what is causing this.
It happened after using a drum app and I just can’t get back to normal.
I’m on cubase 15 pro.
Thanks.

You may have the pitch visibility activated.

Oh yes, Thank you Greg, you’re a life saver!
Cubase has become ultra powerful but also crazyly full of traps and complexity.
What a relief!
Best Regards.