Object disapear when moving

Hello,
My small scene shows one equipment (a camera !) on a pole.
Camera is a mesh, pole is a cylinder.
Camera and pole are separated objects, but moving in x and z together).
When I move the both objects (changing z in the picture hereafter), the “camera” mesh disapear.
The “fps camera” is here in x=0, z=0

How can I resolve this behavior ?

(

  • if I change the “tilt” angle of the fps camera (pointing to sky), the camera object apears. If I tilt down, it disapears.
  • I have tried to change the camera.minZ from default value 1 to 0.1, no change.
    )

Best regards.

I will need a repro to help

This is quite intriging