Initially I couldn’t force the motion path to turn red as I wasn’t sure what caused it. However I have now deduced that it is occuring when the ball bounces back up in the second half of the cycle – However I still don’t know why it wants to do that. Any pointers?
Edit: I thought it might be because the graph is assymetrical – but that doesn’t make sense because not every animation is symmetrical.
Edit2: I still don’t know why it turns red. In once instance it was green all the way through
