Transparency material issue

Hello. I finished texture for my simple 3D game-ready model and when I tried to apply it in Unreal engine I got an issue with the material. After I set everything in material editor model looks weird:

I probably made mistake in setting material, but I don’t know where

In this screen I put render from Substance how it should looks:

Is someone actually going to look through it? Then you need transparency, otherwise not, of course…

Is this


the part that maps to here



@ClockworkOcean thanks for your answer. The only thing that I want to be transparency is the glass in front of the Flashlight.

But for this effect I used two materials and I wonder if it is more optimal to give just one material

This is the place on texture where are the UV islands you indicated:

Strange. I don’t know I’m afraid.