I don't remember having this problem before but I haven't animated in MED for awhile. I have a door with a key in it. I want to animate the key turning about 90 degrees. I make my first frame as a keyframe (with the key at 12:00) and then I add 4 more frames (same as the first, but not keyframes0 and then I add my last frame (a keyframe) where I turn the key to the right angle. It should interpolate from the first keyframe to the last, right? But it doessn't. The keys stays right at the 12:00 position until the last frame where it jumps to the new keyframe position. What am I doing wrong?