I’ve noticed that on most computers, games in the editor and build are completely fine. But on the odd computer, even with games that aren’t mine, everything will be pink and black. Why?
Usually happens due to Shader incompatibilities due to non-supported graphics cards, outdated drivers / even missing textures can cause this (can be seen in the case of modding sometimes)
The main question here is what are the differences in graphics specs between a working and non working computer?
Sorry to answer a question with a question.
When Unity can not upload some material it uploads default pink material. I think it can be tied with your video card or driver. Try to check them.