Complete newbie to this software but have used others like it.
Running Home Designer Suite 2025 on a Mac.
Title about says it. I think the polygon is from a deleted skylight. I can see it in various views (plan, 3D, glass, framing, etc.) but can't ever select it. It's throwing up errors add it's messing with other renderings.
Screen shot and Plan Attached.
Dormer4.plan