Weird green pixeled spots on the model


Hello everyone! Can anybody help me with the problem. During setting scene in Unity I noticed weird green tint on the model in corners and some pixels on some places. It should be mentioned that the black is not true black in the whole and has some redish tint. What is the reason of it and how to fix it? The second screenshot shows how it looks in Substance and how it should look . Will be appreciated any advice