It is hard to know what we are looking at from the plan view shown. Doors and Windows are "hosted" by a wall. If you stack two walls on top of one another, they only cut a hole through the host wall... not any other walls that they might overlap with. From your screenshot, I have to assume that another wall is on top of the host wall in your case. It cannot be a Model View Option (which can turn door/window openings off) because if doors/windows are turned off there... you would not see the swings/sash as shown.
What do you see in 3D?
PS Re-downloading Archicad is never a solution for something like this not appearing correctly. It either works or it doesn't.
One of the forum moderators
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