The elevation lines of the bottom two walls appear on the top wall.
This was resolved by setting the display order level of the wall below to 6 in advance. But I don't think this is the way.
This is because if a problem like this occurs on the upper floor, the level of the wall needs to be raised again.
1.story plan view
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worksheet
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1. This is display order level 7 for All wall.
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-1. story Wall
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AC27 on window 11