I am not sure, but there appears to be a sill below the floor levels that is protruding into the slabs?
That will be removing the wall that goes down into the slab, so maybe there is no wall there to interact with the slab now.
Might be the same interaction with floors and doors where if the wall that passes through a slab the intersecting portion will be removed so that the finish continues through.
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Between the 2 pictures , I just added the window.
When removing the slab , the wall continue.
So it’s something doing with the window parameters. Specially the hole parameter of the sill.
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The problem is not related to the sill specially , but to the "Sill to" xxxx (in my case"Sill to Story 0".
If the window or the door are placed in the same level of a slab (sill to story 0 = 0) and for the slab (offset to home story = 0) and window and door doesn't have sill but can have inset !
when changing the sill to story or the slab offset to home i have another display but never the correct logical display !
Have you managed to solve it?