Presuming that you have modeled walls etc and you are placing lines in floor plan (which will not show up), things to check:
• Layers are on
• Elevation marker range includes the model (set to infinite)
• Zoom Extends to see the model
• Renovation Filters are the same
eduardo rolón AIA NCARB Another of the forum moderators. Macbook Pro M1 Max 64GB ram OS X 10.XX latest AC26 US/INT -> AC08 Puerto Rico, BVI, Miami Vectorworks 2023