Thanks for invaluable feedbacks
1. That's interesting. I will review the code.
2. I will review the code too but i guess it's probably a current technology limitation rather than bug.
3. Then if you click the floor , it say cube or cylinder? Whatever it may say, change to cube and press Adjust again. What will happen then? You should also try the Delete button. It will delete the sprite then try to regenerate it. It's best to use in situations when 3dnes do the wrong sprite segmentation ( one correct sprite is cut into small parts or two sprites are seen as a wrong big sprite.