Check the layer is turned on (obvious I know!).
Check that you don't have objects turned off in the 3D filter options.
Try a renovation filter that does not hide or override anything.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11