Still getting weird shadows

Hello. I posted a question a few days ago about not being able to build the light in my scenes, and getting weird shadows with a particular model. I managed to get the light to build (it was a bug from the unreal version I was using) but the model is still giving me awful shadows. I’m new both to unreal, and to the concept of lightmaps among others, and I think the problem has something to do with that. I’ll leave an .obj file with my model, for anyone who wants to check it out. It would be lots of help. If I’m right, and it is something about those lightmaps, then an answer would not only fix the problem, but also clarify a lot of things for me.

Thanks a lot, and sorry for any bad english.

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