Hello KYARCH,
The is a parameters into objet to enable 3D, did you check this parameter ?
There is a window to create "Filter and cut elements in 3D", did you check it ?
Christophe - FRANCEArchicad Designer and Teacher
Archicad 15 to 27 FRA FULL
OS 11.6 Big Sur - MacBook Pro 2017 - 16Go RAM
"Quality is never an accident ; it's always the result of an intelligent effort" John Ruskin