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MSFS Parallax windows issue


I have a problem, again.
Parallax window material shows up perfectly in 3ds max (2021), but wrong in the sim itself. max and GLTF files
I'm using the latest SDK.
What might cause this?


When I look at the glTF, I find this:
         "name":"t2 parallax window 2 vertical",

Try roomSizeYScale":0.5
Could you explain to me how mapping actually works? I created a texture sheet following the example of SDK. I created 16 different textures of my own there for convenient work in the future. But when mapping in the 3ds viewport, I don't see all the textures. And the texture sheet itself is also strangely and randomly generated. I can live with the fact that in the Sim itself they are displayed in a completely different order than on the texture sheet. But, why can't I see all the textures in 3ds? When I change the "room number" it breaks the mapping of all other textured polygons


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