You will see a keyframe indicator appear at frame 1 in Timeline and, if you are using the Animation workspace, you will also see entries appear in both the Dope Sheet and Graph editors. This creates a frame with just rotation data which, in this case, is 0. For this example we can just leave the helper as Blender placed it. For the start of our animation we need to set the rotation of our helper to be at 0 (zero) degrees.Select the b.r.main helper if not already selected.You should be able to correct that by reloading the textures within Blender. If the sphere is a pink/purple colour then that means Blender can't find the material textures. Open the ex1_example.blend Blender source file in Blender 2.8.The config.txt is complete but you will need to change the asset kuid to be one of your own.
The source file is in zip format so extract it into the project folder.