Textures missing

Hi! I'm having a problem with Unity3D. Me and some friends made this game for Global Game Jam, and the textures in the first picture are applied to my teammates' project, but when I pull (we have it in GitHub) they aren't applied. In fact the one's that are present were manually applied by me. The models were made in MagicaVoxel if it matters. Also when I clone from the repository the file "ProjectSettings/Packages/com.unity.probuilder/Settings.json" is automatically changed, but I can't see the changes. I can see the file, but nothing seems changed.

Thanks in advance!