Why do texture coordinates shift after baking a texture in 3ds max and overlaying it?

Question

3ds Max

It is necessary to create a model with one texture from a model with many textures.
I click in the window "Render to texture" Only unwrap there I click Vertex to Polygon, then in Flattern Mapping I rotate everything by 45 degrees and render, then I apply the resulting texture

Answer 1

It is necessary in the Unwrap UVW modifier to create the final scan in the 2nd channel.
And in RenderToTexture, find Mapping Coordinates and also set channel 2.
Otherwise, your scan goes astray