Same experience for me, going too quick, some files being used for objects, foliage, or rocks I did not have which made matters worse, sometimes the entire scene would freeze up. Unfortunately the software is not what I would call “intuitive” and it is indeed a steep learning curve to get this stuff down. Unsure there are any better videos or more beginner geared so to speak. The instructor does know what he is doing, unfortunately I do not (joke) so that is the big problem, trying to soak it all up. I gave up today for two main reasons, learning the software would be a serious grind and then creating something would take probably much longer, so those two combined sunk me. I may go back to it all if I can find a new resource or different video to learn it. As of now, putting it aside.