Invicta Fighting Championship got hit with a pair of late changes for tonight’s sixth event while trying to get fighters official at Friday’s weigh-ins. On just one day’s notice, Kathina Catron (3-2) will step up to fight Livia Von Plettenberg (1-1) on the preliminary card of Invicta FC 6. Catron replaces Cassie Robb (0-1) in an odd set of circumstances. Robb was scheduled to meet von Plettenberg in an atom weight bout. But when von Plettenberg weighed in at 113 pounds for the 105-pound bout, the fight was scrapped with the extreme weight difference. Instead, despite missing weight for her contracted fight, von Plettenberg is the one who will remain on the card – and move up to a flyweight bout against Catron.