If an image is being dragged across the work space in Silhouette Studio or being re-sized and is 'jumping' from place to place, rather than being moved or re-sized smoothly, this typically indicates that the Snap to Grid option is enabled (even if the Grid is not displayed).
Snap to Grid Option
To resolve the concern:
- Open Silhouette Studio
- Go View > Grid Options
- Un-check the Snap to Grid check-box