For reasons I don’t quite understand, the direction the ball rig rotates changed halfway through animating, and I haven’t found a way to fix it without messing up other parts of the animation (such as the squash & stretch). Is there any way to reverse all selected values in the graph editor at once? Also, what do you think could be the reason for the inverted rotation?
As to what I was editing at the time, I was putting in a new rotation on the ball, only to find when I played the entire animation back that everything but the part I just edited had reversed direction (but not value).