Some times, downloaded object are not willing to be placed in the correct host?

I have downloaded a nice toilet (Kohler Saile 3564), but it prefers hosting on the wall. When you place it in Coarse and medium, there is only seen a box. In fine mode you see the toilet. I have changed and took that box out, but it is still there. The only way to put it correctly is to do the placement in a 3D view. Don't understand what mistake I made

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