This warning displays when a room in the main model and a room in the primary design option overlap.
Issue: For example:
- You add a room to the primary option, and the main model already contains a room in the same space.
- You add a room to the main model, and the primary option already contains a room in the same space.
Solution: To resolve the issue, delete the room from the main model or from the primary option. If the room should be defined in the primary option instead of the main model, move the element to the design option.