UE5.1 loseless texture import?

Hello Community,

this is my first post, so sorry if this question is in the wrong topic.

So in Photoshop I got a texture with an alpha channel that I exportet as PNG with Alpha Channel. Every black pixel in Photoshop is black.

When I import the texture into my UE5.1 project some dark black spots turning green or have like a green shimmer on them.

Thats where I believe I get this kind of green shimmer on the model in my scene.

Can someone help me with this? Why is this happening or can I import lossless?

I already tried to import it as TIF and TGA but that doesn’t seem to fix the problem.

I also tried changing some values under “compression” when opening the texture inside Unreal Engine.

I will link some pictures in the following.