I'm very similar to you - I can't consciously visualize - I just get a blank when I try. But I can lucid dream, and then I can visualize perfectly, even design

I'm very similar to you - I can't consciously visualize - I just get a blank when I try. But I can lucid dream, and then I can visualize perfectly, even designing complex 3d mechanisms. When I'm fully awake, I'm sort of aware those visualisations are still happening in my subconscious, but I can't access them consciously.