Why do my objects move normally while everyone else has them invisible?

Question

Unity

Here I have a brown cube and a board, when I move them, they move normally, but if a person comes to my server, then the picture of the cube and the board remains in its place, and the cube itself becomes invisible but weighty, you can throw it, push, but its texture remains where it originally spawned. The creator, who launched the map, everything is moving normally. Before that, I created another level, everything was the same and everything worked, the only difference was that in the previous level there was only one box and a board, in this level I made about 70 of them, I just copied and pasted half, but the box with the board on the screen is not copied, but original.

Answer 1

Layer on the right in the inspector look. There stands DefaultNoCam - it means it is not displayed on the camera. To remove this, just put another desired layer and check that it is rendered on the camera.