a unity collab project is 2d for one person and 3d for the other

I create a 2d project and enabled collab then I invited a friend and joined my project.I made the project 2d but he saw only 3d and my changes did not apear.

please help

It’s pretty late but we had the same issue and our solution was saving the scene and publishing it. After your friends sync the project, they will be seeing your changes and the scene will turn into 2D

It appeared like this for me also, the fix was changing the scene.