Gusset rendering goes black

The issue of the ceiling panel turning black is usually due to two reasons:

  1. Insufficient lighting, requiring additional lights. You should add supplemental lighting from the rendering interface and enable double-sided lighting, which can illuminate the ceiling.

  1. Overlapping panels. Press Ctrl+2 to enter frame mode. If there is flickering or black shadows on the panels, it indicates that the panels are overlapping. Remove the overlapping parts and reset the panels.