[Unity] Invisible UI

Hi !

I recently opened an unity project cloned from git. But when I tested it, I don’t see the UI. However, my employer has the same project on his machine, I tested his project and the UI is present. There is no a lot of differences between both projects. The number of shader variants are not the same in Project Settings > Graphics, that’s all.

According to u, where does the problem come from ? How can I make the number of shader variants to be the same ?

Thanks a lot and sorry for my English,
a french developer