I have two characters, one player controlled and one possessed by a Player Controller class but without any input. When I apply LaunchCharacter (via C++) to them, it works on the controlled character but not the other, in any direction. I would assume this has to do with the character possession, but I can’t find a problem with that. Attached is the possession blueprint.
It would seem you are using CMC. I suggest you read up on CMC, because this will never work.