The fact that your ex-spouse is not paying child support, as ordered by the divorce decree, is an independent provision of the divorce decree and cannot be used to withhold visitation. Alternatively, if you denied visitation, your ex-spouse could not withhold child support payments. In essence, the visitation provisions and the child support payment provisions of your divorce decree operate independently. If the custodial parent denies the other parent visitation rights, the noncustodial parent could ask the judge to hold the custodial parent in contempt of court for noncompliance with this provision.
Contempt can be civil or criminal.
A civil contempt is punishable by the judge placing the party in contempt until he or she complies. Therefore, both parents should be aware of the penalties in their dealings with each other. A person who contracts receives a sexually-transmitted disease and goes though a divorce without addressing this issue waives any right to address the issue at a later date. In other words, Jane is married to Dick. Dick has an extramarital affair with Sally.