I've had my atty file motions to "Show Cause" never "Just Cause".
This might help or be totally wrong.
Motion to Show Cause:
The Motion to Show Cause is a motion filed with the court demanding that the parties appear and provide the reason that he or she has not complied with the court order. The obligor is ordered to appear before the court to show cause why he or she should not be found in contempt. The motion is a request that can be for any issue in the court order, e.g. failure to provide medical cards, insurance information, genetic testing, or for lack of support payments. The motion can cover whatever issues were not complied with in the court order. The obligor may purge the civil contempt by complying with the order. Continued failure to comply with the order or repeated findings of contempt can result in incarceration.