Excuse me.
This is my first question.
Recently I started up studying UE4.
First, I imported my model to mixamo for rigging. It exported to FBX.
I imported that in UE4 but it looks different.
Is there way to solve this problem?
Sorry for my engRish.
you need to get an opacity map for the model to the engine to recognize properly the model if it works for you remember tp upvote this 
I dont know what I do but finally it works, thank you!