Dark Wizard Trouble

When I beat the first map with any character on dark wizard, the victory scene pops up, these two dark army guys diss you, and nothing else loads after that, it just stays on the castle scene. The game is run by the ISO method using gens. I press buttons but nothing happens at that scene.
Turn on 'Perfect Synchro' before you beat the warlord, it will then work perfectly. I had the same problem so I asked the guy who made GENS.