Running 9 AI (If Your Playing Alone), Is No Easy Task On The Workshop Or The Overwatch Servers, Custom Games Receive Server Resources Based On How Many People Are Playing.
Meaning If The Servers Are Pretty Full The Custom Game Receives Barely Any Resources Because There Are Stretched Thin. And Since The Resources Required Is More Then The Resources Given The Lobby Crashes And Kicks Everybody Out.
The AI Uses A Pathfinder However Once The Final Destination Is Within Line Of Sight (Destination Is Its Target While In Combat) Then It Just Moves In The Direction Towards The Final Destination.
On Maps Such As Nepal Shrine It Has One Way With A Staircase, No Line Of Sight To The Point And No Gaps In Which It'll Pathfind To The Point Then Goes Onto It, But The Other Way Has Clear Line Of Sight To The Point With A Huge Gap.
The AI Will See The Clear Line Of Sight To The Point/Target And Ignore Its Pathfinder Going Straight Towards The Point/Target.
Sources
This post utilizes other codes either in part or in full. This could be because they remixed them, used parts of them, were inspired by them, or other reasons.