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
worksheet
1. This is display order level 7 for All wall.
-1. story Wall
AC27 on window 11