There's lines on my seams
Hello everyone!
Here's my problem

There is those red lines on seams of a model, and I don't know how to get rid of them.

I guess, it somehow related to the first layer folder, which texture is red. And I use different models in same position, but with same material.

Even if I hide first red layer, you can still clearly see those blank lines on seams. How do I solve this? It is serious problem for me.

Even putting them in Blender doesn't help.
I beg you guys, please help.
I think this problem applies to texture due to its material wich contains multiple models in it. But how to fill those blanks?
Can not upload my file here -_- . So I hope you understood my problem, and will try to find solution
