Problems Previewing the Flat State
A preview of the flat state does not appear for boards with the following geometry:
• Two or more distinct pieces
• Unmerged quilts
• One or more deformation areas that cannot be unbent
• Relief geometry that is not valid
• Hem geometry that is not valid
• Deformation areas that cannot be regenerated
• Sharp edges that cannot be unbent
• Surfaces that cannot be unbent