Geometry disappearing during scene transitions

Certain types of geometry and disappearing during scene transition (all combinations but below GIF was easier to do 2D -> CV, but happens in 3D as well)


I used the Geometry and Appearances Sandcastle for this, but no reason to believe it doesn't affect geometry of certain types everywhere

Start by reproducing the problem in the Geometry and Appearances Sandcastle using the GIF and the reported 2D-to-CV transition, then check whether it also occurs in 3D. Trace the scene transition behavior for the affected geometry types. Done means geometry remains visible through the reported transitions across the affected combinations.

Written by the indexing model from the issue text.