Cec, I compared how your file renders with Sweet Home 3D 6 Beta and Sweet Home 3D 5.0 (won't work with Mac OS X ≥ 10.13) and didn't notice any visual difference : same wall sides where the texture spreads from the top to the bottom and same ones where the texture pattern is smaller.
As each wall side stores the size of the texture applied on it, it's possible to mix the same imported texture image at different size (I speak about size, not scale) if you change that size at different moments.
Keep also in mind that a SH3D file contains everything it needs to render itself, even if I guess that you proposed the texture image to let us test it.
As a conclusion, here's a tip that few of us know: if you want to copy a texture from a file to another one, display that texture in Texture dialog box like if you wanted to change the texture of a wall or a material, press OK to add it in the recent textures list, then choose the object on which you want to apply the texture, display its Texture dialog box and choose the texture in the recent ones lis. Et voilà ! Not super handy, not a behavior I thought about when I programmed Sweet Home 3D, but actually a nice tip
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Emmanuel Puybaret, Sweet Home 3D creator
