UNU Streamliner B Unit and Trains like that dont work when you want to place it in multiplayer there come a chat message: Error rolling stock does not exist on the server. can not place. ensure you have installed the resource pack in the servers confic/immersiverailroading folder. but in the single player dont exist that too but there it works. its a unu civilian vehikels mod

Resource packs must be installed on the server in the config/immersiverailroading directory