Wall End refuses to clean up

[Rene Pahlavan]

Not sure how to solve this or why it is happening. All the interior walls are cleaning up well in plan except for this one junction (see attached picture). Same layer, same junction order, and I have played around endlessly with the reference lines, and still, there is a line appearing at the junction. If I move the wall more to the left, the line disappears; but close to that corner, I cannot get rid of it. 

  

[Eduardo Rolon]

You copy from floor plan and you paste in the Custom Profile window.

[Lingwisyer]

So my guess was correct. I guess a full line that is always visible is better than a line at just the overlapping bit that flickers in and out...