Have you animated the position of your layer? If the layer isn't moving, the echos will just appear in the same place as the object. Note that it changes over time - there will be no echoes at the start of the timeline.
Have you animated the position of your layer? If the layer isn't moving, the echos will just appear in the same place as the object. Note that it changes over time - there will be no echoes at the start of the timeline.