Problem migrating static and skeletal meshes


I’m working with a couple of friends in a project and we are moving between our computers the assets that each one creates. The problem comes when we import the assets and they come with the Textures and sprites not linked, they say WorldGridMaterial in the place of the texture when they used to work just fine in the original pc. I know that this happens when the engine can’t find the texture but we usually import everything together. We know that we are doing something wrong exporting the files but we can’t find the right way to do it, Any suggestions?