Hello!
 
	 
 
	I've recently begun a new job and the system they have is Autocad Architecture 2018. My question relates to using bay or bow windows inserted with the tools palette. Whenever I insert these they seem to have a boundary in a thicker line that I can't seem to turn off or hide. I have attached a screengrab. the red arrows indicate the line in question. 
 
	 
 
	Ideally, I want to turn off / hide the line spanning between the walls (larger red arrow pointing upwards). When I insert casement windows they don't seem to have this thicker line on them. 
 
	 
 
	I have looked on the forum for hours but can't seem to find this question. Any help is appreciated!