Wall not connected to ceiling

[Bummibaer]

There is a old thread about it. But I cannot get a solution.
Is there a solution now?
I have an open kitchen with low walls. But in the 3D it
will connected to the ceiling...

thanks

[Puybaret]

As explained in the help about editing rooms:

[...] the height of the ceiling of a room is computed at each point of the room, and the height at each of these points is equal to the height of the closest point of a wall. This allows to create the ceiling of a garret when you set different heights at the start and end points of sloping walls.

Conclusion: don't display the ceiling, or move points of the room to avoid them be close to your small walls. You could also draw the room point by point avoiding the small walls, or delete the points you don't want in a automatically created room with the Delete point from room item available in the contextual menu when you right click on the point you want to remove.