As the saying goes:
It is a feature, not a bug.
Turning those Composite skins is not implemented in 3D, only in 2D.
You best bet is just drawing over them with lines and fills in the Section.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28