I am trying to make a 'T' shaped stair case, however the walk through provided works fine for the type of stair case demonstrated. My "T" stair case has two lower legs leading to a landing with 1 upper leg leading to the second floor. When I make the 1 lower, 1 upper and then run the landing tool it creates the stairs as expected with landing. When I adding the second lower leg it creates a multisided staircase (despite there being walls in the way) - see "Capture2.png".
If I shrink the width of the stair case it will draw correctly but complains that they do not have matching width - see "Capture1.png"
What am I missing?