Matinee editor not show curve editor (black space)

Hello, I have a problem. Curve editor in matinee stop show (show only black blank space).
Tip for view again?

Thanks, Peter.

I’m having this issue too and I’m afraid that it might be a bug in 4.22. I tried doing the same thing in 4.20 and it displays normally.

Edit: Looks like the bug is already being tracked and is targeted to be fixed in the next engine update. Fingers crossed!

Edit 2: Doing some more search, it seems like they’re doing a curve editor revamp in 4.23. Interesting. Trello

thanks for info darkpivot!