Operating system and graphics card
Distro: Arch Linux
GeForce GTX 1060 6GB/PCIe/SSE2 v: 4.6.0 NVIDIA 410.66
Short description of error
In the Outliner window, there is a camera icon.
Which enables or disables the display of the object in the render.
All objects have this icon.
And, objects that are not rendered.
The camera icon of these objects does not change anything in the visualization.
The question is debatable whether this is a mistake.
Logically, this is a mistake.
Change this situation. For example, the icon for such objects is always off or not visible.
Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps
To see, add these objects to the scene, render.