Can you test in Ansys 2024 R2? The picture you showed does not show mesh which is the only way the thick shells and beams work. Please turn mesh on.
It has a grey shade that looks like SpaceClaim but what is that blue that looks like a diagnostic contour? The background is white which is not deafult but can be set. This looks like a picture from some other software.
You are navigating away from the AIS Discovery experience