Battlefront II More than one Sword Unit in a Side/Match Thread

Hi I have a problem,
For My Mod I use a Clone Assassin and a Magnaguard with an Electrostaff. But when Both Units in the Match there are glitchy and after few Attacks they are standing in the Air. The Same Problem I have with the Heroes. For Example the Assassin works fine but Obiwan is Glichy and freeze in the Air after a few attacks.

Does anyone know the problem and how to fix it?