Model lit strangely in HDRP

Unity Engine
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Hi!
While working on my game using HDRP, I encountered a strange problem.
Well, the arms of the characters in my game are lit strangely (mainly the backs of the arms, even though the light is in front of the character).

Smoothness and Coat Mask in materials are set to 0. The material is a standard HDRP/Lit material with Surface Type set to Transparent.
The only thing that, let’s say, fixes this problem is setting Normals and Blend Shape Normals to Calculate and changing Smoothing Angle to 0. But then the model is angular. Please help D:

Screnshots:
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This looks just like what I would expect when trying to light a low poly model using smoothed normals.
Maybe if you want to keep the low poly look, but have some sort of smoothed lighting, try to bevel the edges of your model, and use face weighted normals.
Or you can also bake normal maps.

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