UE4 freezes at 39% of initialization

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my UE4 editor freezes at 39% of initialization

actually it’s a new blank scene , I can’t even start it

Some times it can take a very long time. It might be compiling shaders in the background. Are there a lot of things in your project?

Maybe try to verify your engine.

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es un proyecto en c++ ? O solo bp ? crea otro proyecto o abri un existente, y proba abrir tu proyecto con el editor abierto