Problem with Childs

I created a Child from a Parent Blueprint. When I first opened it, everythings was normal, save it and close the window. After reopening the Child, I saw the window empty:

At first, I thought that it was a problem with the specific Child, so I deleted it and made another one. Same Problem. I tried making Child for different Actors… same problem. Then I thought it could be a problem with the specific project, so I tried making Childs in other projects… same problem.

Does anyone know how I can get back the full editor with all its windows for the Childs? Through the Window menu I just got back My Blueprints and Class Defaults.

Thank you everyone!

Click open full Blueprint editor in the top right under class defaults.

Thank you very much!