Can't edit blueprint, help!

Hello!
I have made a blueprint as a child of a c++ class, but when i try to open the editor, i just get a blank white window! The same is true for all blueprints, and happens for all of my projects, what can i do??!!

Found the answer here: https://answers.unrealengine.com/questions/323117/editor-cannot-open-blueprint-editor.html

All is good ^^