When I copy and paste keyframes on a motion tween symbol layer, it re-positions and re-scales.

When I copy keyframes on a symbol that is motion tweened and paste it in a different part of the timeline, it just re-scales and re-positions the layers, messing up my whole animation. In this case, I am animating a walk cycle and simply trying to copy and paste the keyframes so I don't have to indivually animate everything again. Could anyone possibly help me to find a solution towards this problem? Thank you 🙂