Hi all, we’re making a mod for a game for which we want to render a new main menu video showing a seamless flag animation. As I’m still learning Blender, we asked another person to create this animation. He sent the Blender file to us so I could render it. (The game is a bit weird when it comes to videos and we don’t want to bother the other person with permanent re-renderings. Also the texture may change in future.) The problem is that the materials and textures are not shown. I’m not meaning that the flag is black in render mode. Even the material and the texture previews don’t show anything, even no background. This problems still occurs when creating new materials, new objects with new materials or when opened by other users of our team. With other files, my Blender works correctly. I’ve attached an image to show the problem. You can see there that the texture itself is actually loaded but not shown in either the preview or the viewport. Neither the creator of this file nor Google know an answer (or I am just bad at googling). Thank you for your help.
Link to zip file (bigger than the allowed 15 MB):