You need to open original DSS first and use the port 3333 for VMC sender. Both programs need to load the same avatar. Then you could sync DSS motion to the Unreal one. If you meet issue, just join this discord to ask. https://discord.gg/BW3Jhpmyxd You need Dan Sing Sing software to work with it. https://vtubershop.booth.pm/items/3562018