In motion Tween the basics are, having a first and a last keyframe which has
the tween in between them. When i change the position of the object a bit in
the last keyframe, the motion tween is ruined and in middle part of the motion
tween the object turns out to be transparent and shows the background colour.
What i want to know is that if the purpose of motion tween is just to transform
an object by position or colour or some other characteristics, then how does
changing the position of the object make a difference to its appearance which
it should not do.:confused;