Wall includes an arrow on one of its boundary faces

[46cruisair]

I have come across on the floor plan the walls include an arrow along one side boundary of the wall that has altered how the wall intersects with other walls and I cannot find how it came about or how I can control it, remove ti or what it is all about?

[Lee Hankins]

That's an on screen view options which show drawing aids. See this link for an explanation.

https://help.graphisoft.com/AC/26/INT/index.htm?rhcsh=1&rhnewwnd=0&rhmapid=#t=_AC26_Help%2F050_Views...

Just turn off the Wall and Beam Reference Lines and turn on Clean Wall Intersections.