I created scissor trusses in several areas of my design. They all show up just fine in the framing view. But in a 3D perspective, the vaulted ceiling still displays as a conventionally framed roof (ceiling pitch is the same as the roof pitch). I'm a relatively new user so I'm probably missing something.
HD Pro 2020
Build: 21.3.1.1x64
Intel Core i5-6300 cpu @ 2.40 GHz 2.50 GHz
RAM: 8.00 GB